A
160 plants
- Abelia
- Acidswamp Yellow-eyed Grass
- African Bristlegrass
- African Indigo
- African Pepperwort
- Agarista, Pipe-plant
- Ageratum
- Aiken Hawthorn
- Alabama Black Cherry
- Alabama Grapefern
- Albany Hawthorn
- Albertville Hawthorn
- Alexander grass
- Alexander's Rock Aster
- Alga Pondweed, Conferva Pondweed, Tuckerman's Pondweed
- Alkali Sacaton
- Allegheny Buttercup, Mountain Crowfoot
- Allegheny Live-for-ever
- Allegheny Monkey-flower
- Alligator Grass, Paspalidium
- Alligator-weed
- Alsike Clover
- Altamaha Skullcap
- Alternate-leaf Dogwood, Pagoda Cornel, Pagoda Dogwood
- Alternate-leaf Seedbox
- Alternate-leaved Water-milfoil
- Alyce Clove
- Amazon Sprangletop
- American Alumroot
- American Barberry, Allegheny Barberry
- American Basketflower
- American Beach-grass
- American Bittersweet
- American Black Nightsahde
- American Black Nightshade
- American Bugleweed
- American Bur-reed
- American Chestnut
- American Climbing Fern, Hartford Fern
- American Columbo
- American Cupscale
- American Dog-violet
- American Elm, White Elm
- American Figwort
- American Frog's-bit, Spongeplant
- American Hazelnut, American Filbert
- American Holly, Christmas Holly
- American Hop-hornbeam, Ironwood
- American Lily-of-the-Valley
- American Lipocarpha
- American Mistletoe, Christmas Mistletoe
- American Pennyroyal
- American Persimmon, Possumwood
- American Pillwort
- American Plantain, Broad-leaved Plantain, Blackseed Plantain, Rugel’s Plantain
- American Royal Fern
- American Self-heal
- American Snowbell, American Storax
- American Trout Lily
- American Wahoo, Burning Bush
- American Water-pennywort
- American Water-willow
- American Whitlow-wort
- American Wild Lettuce
- American Wild Plum
- American Witchgrass
- Amur Honeysuckle
- Angelico, American Lovage
- Angle-stem Beaksedge
- Anglepod Blue Flag
- Anise-root, Smooth Sweet Cicely
- Annual Bastard-cabbage
- Annual Dune Whitlow-wort
- Annual Fimbry
- Annual Fleabane
- Annual Greenhead Sedge
- Annual Knawel
- Annual Mercury, Boys-and-girls
- Annual Oak-leech
- Annual Passionflower
- Annual Phlox, Drummond Phlox
- Annual Sand Bean
- Annual Sea-pink
- Annual vernal grass
- Anomalous Eupatorium
- Apodanthus Daffodil
- Appalachian Arrowhead
- Appalachian Beardtongue
- Appalachian Bluet, Thyme-leaf Bluet
- Appalachian Clasping Aster
- Appalachian Cow-wheat
- Appalachian Dodder, Beaked Dodder
- Appalachian False Goat's-beard
- Appalachian Filmy Fern
- Appalachian Flat-topped White Aster
- Appalachian Gayfeather
- Appalachian Gentian
- Appalachian Golden-banner
- Appalachian Goldenrod
- Appalachian Indigo-bush, Mountain Indigo
- Appalachian Ironweed, Tawny Ironweed
- Appalachian Little Brown Jug
- Appalachian Meadowrue, Maid of the Mist
- Appalachian Mock-orange
- Appalachian Mountain-mint
- Appalachian Oak-leech
- Appalachian Phacelia
- Appalachian Pigmy Pipes
- Appalachian Quillwort
- Appalachian Quillwort
- Appalachian Ragwort, Small's Ragwort
- Appalachian Rock-pink
- Appalachian Rockcap Fern
- Appalachian Sandwort
- Appalachian Sedge
- Appalachian Shoestring Fern, "Appalachian Gametophyte"
- Appalachian Small Spreading Pogonia
- Appalachian Sunflower
- Appalachian Turtlehead
- Appalachian Twayblade, Small's Twayblade, Kidneyleaf Twayblade
- Appalachian White Snakeroot, Appalachian Milk-poison
- Appalachian Woodland Sedge
- Apple Mint, Pineapple Mint, Round-leaved Mint
- Apple-of-Peru, Shoo-fly-plant
- Argentine Finger-grass
- Argentine Senna
- Argentine Spotflower
- Argentinian Pepperwort
- Arizona Cliff-brake
- Arrow Bamboo
- Arrow-wood
- Arrowfeather
- Arrowhead Violet
- Arrowleaf Clover
- Arrowleaf Sida
- Arrowleaf Tearthumb, Arrowvine, Scratch-grass
- Asa Gray’s Sedge
- Ash-leaf Golden-banner
- Ashe's Witchgrass
- Ashy Hydrangea
- Ashy Pipewort
- Ashy Sunflower, Gray Sunflower
- Asian crabgrass
- Asian Net-veined Holly Fern
- Asiatic Greenhead Sedge
- Asiatic Hawk's-beard, Youngia
- Asparagus, Sparrowgrass, Garden Asparagus
- Atlantic Blue-eyed-grass, Eastern Blue-eyed Grass
- Atlantic Ivy, Irish Ivy
- Atlantic White Cedar, Juniper
- Australian Burgrass
- Autumn Beaksedge
- Autumn Bluegrass
- Autumn Coralroot
- Autumn Fern, Japanese Red Shield-fern
- Awned Flatsedge
- Awned Meadow-beauty, Bristly Meadow-beauty
- Awned Mountainmint
- Axillary Goldenrod
- Azure Sage
B
255 plants
- Baby Jump-up
- Bahia Grass
- Bahia Lovegrass
- Bald Bedstraw, Smoothstem Bedstraw
- Bald-cypress
- Baldwin's Beaksedge
- Baldwin's eryngo
- Baldwin's Nutrush
- Baldwin’s Flatsedge
- Baldwin’s Spikerush
- Ball-moss, Bunch-moss
- Balloon Vine, Heartseed, Love-in-a-puff
- Banana Waterlily, Yellow Waterlily
- Barberry Hawthorn
- Barley
- Barnaby's-thistle, Yellow Star-thistle
- Barnyard-grass
- Barratt's Sedge
- Bartley's firmoss
- Bartram's Rose-gentia
- Basil Bergamot, Basil Beebalm
- Basil Mountainmint
- Basket Grass
- Basket Oak, Swamp Chestnut Oak
- Batesburg hawthorn
- Batson’s Lobelia
- Beach Blanket-flower
- Beach False Foxglove
- Beach Morning-glory
- Beach Vitex, Roundleaf Chaste-tree
- Beadle's Coreopsis
- Beadle's Mountain-mint
- Beaked Cornsalad
- Beaked Hawkweed
- Beaked Hazelnut
- Beaked Panic Grass
- Beaked Sanicle, Large-fruited Sanicle
- Beaked Spikerush
- Bear Huckleberry, Mountain Huckleberry
- Bearded Grass-pink
- Bearded Milkvetch, Southern Milkvetch
- Bearsfoot, Leafcup
- Beautiful Goldenrod, Carolina Goldenrod
- Beautyberry, American Beautyberry, French-mulberry
- Bedstraw St. Johnswort
- Beebalm, Oswego Tea
- Beechdrops
- Bell Pepper, Chile, Pimiento
- Bent Sedge
- Bent-awn Plume Grass
- Bermuda Grass, Scutch Grass
- Bicknell's Yellow Flax
- Bicknell’s Sedge
- Bicolor Lespedeza, Shrubby Lespedeza
- Bicolored Spleenwort
- Biennial Gaura, Northeastern Gaura
- Biennial Wormwood
- Big Bishopweed
- Big Bluestem, Turkeyfoot
- Big Carpetgrass
- Big Floating Heart, Banana Floating Heart
- Big Gallberry, Sweet Gallberry
- Big Marsh-elder
- Big Sandbur
- Big Three-awn
- Big-head Pussytoes
- Big-headed Aster
- Big-leaved Aster
- Bigleaf Grass-of-Parnassus, Limeseep Parnassia
- Bigleaf Magnolia
- Bigleaf Snowbell, Bigleaf Storax
- Bigseed Alfalfa Dodder, Pretty Dodder
- Bigseed Forget-me-not
- Bigtooth Aspen
- Bigtop Lovegrass
- Biltmore Ash, Biltmore White Ash
- Biltmore Carrionflower
- Biltmore Hawthorn
- Biltmore Sedge
- Bindweed, Climbing Buckwheat, Black Bindweed, Nimble-will
- Bird's-eye Speedwell
- Birdseed Grass, Canary-grass
- Birdsfoot-trefoil, Eggs-and-bacan
- Bitter Dock
- Bitter Seabeach Grass
- Bitter-bloom, Common Marsh-pink, American Centaury
- Bitternut Hickory
- Bitterweed
- Black Bamboo
- Black Bulrush
- Black Chokeberry
- Black Haw, Nannyberry
- Black Huckleberry, Crackleberry
- Black Locust
- Black Medick, Yellow Trefoil
- Black Mustard, Charlock
- Black Needle Rush
- Black Oak
- Black Raspberry, Blackcap
- Black Spikerush
- Black Titi, Buckwheat-tree
- Black Walnut
- Black Willow
- Black-edged Sedge
- Black-eyed Pea, Field Pea, Cow Pea
- Black-fruited Spikerush
- Blackberry-lily
- Blackfruit Clearweed, Lesser Clearweed
- Blackjack Oak
- Blackroot, Wingstem
- Blackseed Panic Grass
- Blackstem Spleenwort
- Bladder Campion, Maiden's-tears
- Bladder Sedge
- Bladdernut
- Bladderpod, Bagpod
- Bland Sweet Cicely, Hairy Sweet Cicely
- Blaspheme-vine, Bamboo-vine
- Blessed-thistle
- Bloodleaf
- Bloodroot, Red Puccoon
- Blue Butterwort
- Blue Grama
- Blue Ridge Beardtongue
- Blue Ridge Bittercress
- Blue Ridge Blueberry
- Blue Ridge Brome Sedge
- Blue Ridge Cutleaf Coneflower
- Blue Ridge Purple Sedge, Manhart's Sedge
- Blue Ridge Ragwort, Yarrowleaf Ragwort
- Blue Ridge White Heart-leaved Aster
- Blue Running-cedar, Ground-cedar
- Blue Sandhill Lupine
- Blue Sedge, Southern Waxy Sedge
- Blue Twinflower, Pineland Dyschoriste
- Blue Water-hyssop, Sweet Water-hyssop, Carolina Water-hyssop, Lemon Bacopa
- Blue Witchgrass
- Bluejack Oak
- Bluff Oak
- Bluffton Hawthorn
- Blunt Broom Sedge
- Blunt Panic Grass
- Blunt Spikerush
- Bluntleaf Bedstraw
- Bluntscale Bulrush
- Bog Bunchflower, Virginia Bunchflower
- Bog Honeycomb-head, Purple Honeycomb-head, Purple Balduina
- Bog Loosestrife, Bog-candles, Swamp-candles
- Bog Oat-grass
- Bog Spicebush
- Bog St. John's-wort, Creeping St. John's-wort
- Bog Stitchwort, Longstalk Starwort, Bog Chickweed
- Bog Witchgrass
- Bog Yellow-eyed Grass
- Bogmoss
- Boneset
- Boott’s Goldenrod
- Bosc's Bluet
- Bosc's Witchgrass
- Boston-ivy
- Bottle Gourd, Calabash Gourd
- Bottlebrush Buckeye
- Bottlebrush Sedge, Bristly Sedge
- Bottlebrush Three-awn, Spike Three-awn
- Bottomland Skullcap, Veined Skullcap
- Boykin’s Lobelia
- Boynton's Locust
- Boynton’s Hawthorn
- Bradford Pear, Callery Pear
- Bradley's Spleenwort
- Branch-lettuce
- Branched Hedgehyssop
- Branched Witchgrass
- Brazilian Butia, South American Jelly Palm, Pindo Palm
- Brazilian Cat's-ear
- Brazilian Vervain
- Brazilian Watermeal
- Brazilian Waterweed, “Elodea”, “Anacharis”
- Brazilian-pepper
- Bread Wheat
- Bristlefruit Spermolepis, Hooked Spermolepis
- Bristleseed Stargrass
- Bristly Flatsedge
- Bristly Greenbriar, Hellfetter
- Bristly-mallow
- Bristly-stalk Sedge
- Bristol Hawthorn
- Britton's Spikerush
- Broad Beech Fern
- Broad Loose-flowered Sedge
- Broad-leaved Hairy Nutrush
- Broad-Leaved White Panicled Aster
- Broad-leaved Witchgrass
- Broad-toothed Hedge-nettle
- Broad-winged Sedge
- Broadleaf Arrowhead
- Broadleaf Coreopsis
- Broadleaf Pink Purslane
- Broadleaf Pondlily
- Broadleaf Signal-grass
- Broadleaf Whitetop Sedge
- Broadpod Draba
- Bronze Willow-herb, Eastern Willow-herb
- Brook-saxifrage, Aconite-saxifrage, Eastern Boykinia, Allegheny Brookfoam
- Broom Sedge
- Broomcorn Millet, Proso Millet, Hog Millet
- Broomweed, Wireweed
- Brown Bog Sedge, Buxbaum's Sedge
- Brown Bogbutton
- Brown Plume Grass
- Brown-fruited Rush
- Brown's Dock
- Brown's Lovegrass
- Browne's Savory
- Brownish Beaksedge
- Brownseed Paspalum
- Browntop Millet, Dixie Signalgrass
- Buckhorn Plantain
- Buckley’s Hawthorn
- Buckroot, Eastern Prairie-turnip, Hoary Scurfpea
- Buckthorn Bumelia, Buckthorn Bully, Carolina Buckthorn
- Buckwheat
- Buckwheat-vine, Eardrop-vine, Ladies'-eardrops, Redvine
- Buffalo Clover
- Buffalo-bur, Kansas-thistle
- Buffalo-nut, Oil-nut
- Bulblet Fern, Bulblet Bladder Fern
- Bulbous Adder's-tongue
- Bulbous Bittercress
- Bulbous Buttercup
- Bulbous Canary-grass
- Bulbous Wood-rush
- Bull Paspalum
- Bull Thistle
- Bulltongue Arrowhead
- Bulltongue Arrowhead
- Bullwort, Greater Ammi
- Bunch-flowered Daffodil
- Bunched Arrowhead
- Bundleflower, Prairie Mimosa
- Bur Chervil, Bur-parsley
- Bur-cucumber, Nimble-Kate, Star-cucumber
- Bur-reed sedge
- Burning Nettle, Dog-nettle, Small Nettle
- Bush Hawthorn
- Bush Morning-glory
- Bush-clover
- Bush's Muhly, Nodding Muhly
- Butter-and-eggs, Yellow Toadflax, Wild-snapdragon
- Butterfly Pea, She-pea
- Butternut, White Walnut
- Butterweed, Smooth Ragwort, Yellowtop
- Button Sedge
- Buttonbush
- Buttongrass
C
479 plants
- Cabbage Palmetto
- Cabbage, Collards
- Caesarweed, Bur Mallow, Congo Jute
- Calcium-fleeing Sedge
- Caley Pea, Singletary Pea
- California-poppy
- Calliopsis, Plains Coreopsis
- Camelina microcarpa
- Camellia
- Campernelle Jonquil, Sweet-scented Jonquil
- Camphortree
- Camphorweed, Camphor Pluchea
- Canada Bluegrass
- Canada Burnet, American Burnet, White Burnet
- Canada Columbine, Eastern Columbine
- Canada Enchanter's-nightshade
- Canada Frostweed, Canada Sunrose
- Canada Milkvetch
- Canada mint
- Canada Sanicle, Black Snakeroot
- Canada Spikerush
- Canada St. John's-wort
- Canada Whitlow-wort, Forked Chickweed
- Canadian Rush
- Canary Island Tamarisk
- Canby's Cowbane
- Canby’s Lobelia
- Cancer-root
- Cane Bluestem, Pinhole Bluestem
- Canebrake Sedge
- Caper Spurge, Myrtle Spurge, Mole Plant
- Cardinal Flower
- Careless-weed, Palmer’s Amaranth
- Carey's Horned Beaksedge
- Caribbean Everlasting
- Caribbean Miterwort
- Carolina Alumroot
- Carolina Arrow-wood
- Carolina Bedstraw
- Carolina Bellwort, Appalachian Bellwort, Coastal Bellwort
- Carolina Birds-in-a-nest, Carolina Macbridea
- Carolina Bishopweed, Coastal Bishopweed
- Carolina Bog Asphodel, White Asphodel
- Carolina Bog Asphodel, White Asphodel
- Carolina Bog Clubmoss, Slender Clubmoss
- Carolina Buckthorn
- Carolina Buttercup
- Carolina Chaffhead
- Carolina Crane's-bill
- Carolina Doll's-daisy
- Carolina Dropseed, Savanna Dropseed
- Carolina Elytraria
- Carolina Fimbry
- Carolina Foxtail Grass
- Carolina Grass-of-Parnassus, Savanna Parnassia, Eyebright
- Carolina Hedge-nettle
- Carolina Hemlock
- Carolina Holly
- Carolina Ipecac
- Carolina Jessamine
- Carolina Joe-Pye-weed
- Carolina Jointgrass
- Carolina Laurel Cherry
- Carolina Leaf-flower
- Carolina Least Trillium, Carolina Dwarf Trillium
- Carolina Lilaeopsis
- Carolina Lily
- Carolina Loosestrife
- Carolina Lovegrass
- Carolina Milkweed
- Carolina Nutrush
- Carolina October-flower
- Carolina Phlox, Thick-leaf Phlox, Giant Phlox
- Carolina Ponyfoot
- Carolina Prairie-trefoil
- Carolina primrose-willow
- Carolina Red Maple
- Carolina Rhododendron, Punctatum
- Carolina Rose
- Carolina Rose
- Carolina Sandwort, Longroot
- Carolina Sea-lavender
- Carolina Sedge
- Carolina Shagbark Hickory, Carolina Hickory
- Carolina Silkgrass
- Carolina Spinypod
- Carolina St. Johnswort
- Carolina Sunrose
- Carolina Thistle, Spring Thistle
- Carolina Triodia, Carolina Fluffgrass
- Carolina Warea, Carolina Pineland-cress
- Carolina Whitlow Grass
- Carolina Wild Indigo
- Carolina Wild-petunia, Common Wild-petunia
- Carolina Willow, Coastal Plain Willow
- Carolina Wiregrass, Pineland Three-awn
- Carolina Wood-rush
- Carolina-vervain
- Carpet Bugle
- Carpet Burweed
- Carpet Witchgrass
- Carpetweed, Indian-chickweed
- Cascade Barberry
- Castor-bean, Castor-oil Plant, Palma Christi
- Catbells, Gopherweed
- Catbriar
- Catchfly Cutgrass
- Catesby's Bindweed
- Catnip, Catmint
- Cattail Sedge
- Cedarglade St. Johnswort
- Celery
- Centella, Coinleaf
- Centipede Grass
- Chaffseed
- Chaffweed, False-pimpernel
- Chalk Maple
- Chalky Bluestem
- Chamber Bitter
- Chapman Oak
- Chapman's Arrowhead
- Chapman's Beaksedge
- Chapman's Bluegrass
- Chapman's Sedge
- Chapman's Triodia
- Chapman's Yellow-eyed Grass
- Chapman’s Bristlegrass
- Charlock, Crunchweed, Wild Mustard
- Chaste-tree
- Chattahoochee Trillium, Deceptive Trillium
- Cheat, Common Chess, Rye-brome
- Cherokee Rose
- Cherokee Sedge
- Cherrybark Oak, Swamp Spanish Oak
- Chickasaw Plum
- Chickenspike, Gooseweed
- Chicory, Succory, Blue-sailors
- Childing Pink, Proliferous Pink
- Chilean rabbitsfoot grass
- Chinaberry, Carolina Mahogany, Umbrella-tree, Pride-of-India, “White Cedar,” “Persian Lilac”
- Chinese Beautyberry
- Chinese Chestnut
- Chinese Crown Orchid
- Chinese Elm, Lacebark Elm
- Chinese Firethorn
- Chinese Holly, Burford Holly
- Chinese Jujube, Common Jujube, Chinese Date
- Chinese lovegrass
- Chinese Parasol-tree, Phoenix Tree
- Chinese Pistachio
- Chinese Privet
- Chinese Tallow-tree, Popcorn Tree
- Chinese Tamarisk
- Chinese thorn-apple
- Chinese Wisteria
- Chinese-hat, Wingpod Purslane
- Chipola Dye-flower
- Chocolate-weed
- Christmas Fern
- Christmas-berry, Carolina Matrimony-vine
- Ciliate Meadow-beauty, Short-stemmed Meadow-beauty
- Cinnamon Fern
- Cinnamon Vine, Chinese Yam
- Clammy Cuphea, Blue Waxweed
- Clammy Goosefoot
- Clammy Ground-cherry
- Clasping Coneflower
- Clasping Heliotrope
- Clasping Milkweed, Sand Milkweed
- Clasping Roundleaf Eupatorium
- Clasping Venus' Looking-glass
- Clasping Water-horehound
- Clasping-leaf St. John's-wort
- Claw-vine, Cat's-claw-vine
- Cleavers
- Cleome, Spiderflower, Pinkqueen
- Cliff Saxifrage
- Climbing asparagus-fern
- Climbing Aster
- Climbing Dogbane
- Climbing Fig
- Climbing Hempweed
- Climbing Hydrangea, Woodvamp, Decumary
- Climbing Prairie Rose
- Cluster Fescue
- Clustered Beaksedge
- Clustered Green Dock
- Clustered Sanicle, Clustered Snakeroot, Yellow-flowered Snakeroot, Fragrant Snakeroot
- Clustered Yellowtops
- Coast Flatsedge
- Coastal American Hornbeam
- Coastal Beaksedge
- Coastal Bedstraw
- Coastal Bog Beaksedge
- Coastal Bog Bentgrass
- Coastal Bristlegrass, Coastal Foxtail
- Coastal Carolina Spiderlily, Coastal Plain Spiderlily
- Coastal Carrionflower
- Coastal Dog-fennel, Yankeeweed
- Coastal Doghobble
- Coastal Fetterbush
- Coastal Lovegrass
- Coastal Mannagrass
- Coastal Mermaid-weed
- Coastal Morning-glory, Tie-vine
- Coastal Pellitory
- Coastal Plain Black-eyed Susan
- Coastal Plain Cutleaf Coneflower
- Coastal Plain Dwarf Iris, Sandhill Iris
- Coastal Plain Elephant’s-foot
- Coastal Plain Flatsedge
- Coastal Plain Gentian
- Coastal Plain Lettuce
- Coastal Plain Puccoon
- Coastal Plain Rattlebox, Pursh's Rattlebox
- Coastal Plain Sedge
- Coastal Plain Serviceberry
- Coastal Plain Spearwort
- Coastal Plain Tickseed-sunflower
- Coastal Plain Tulip-tree, Southern Yellow Poplar
- Coastal Plain Water-willow, Loose-flower Water-willow
- Coastal Plain Wireplant
- Coastal Plain Yellow-eyed Grass
- Coastal Prickly Pear, Shell Midden Prickly- pear, Yaaxpakan
- Coastal Prickly Pear, Shell Midden Prickly-pear
- Coastal Rose-pink
- Coastal Sandspur
- Coastal Swamp Goldenrod
- Coastal Sweet-pepperbush, Coastal White-alder
- Coastal Tall Thistle
- Coastal Virgin's-bower, Satin-curls
- Coastal Witch-alder
- Coastalplain Goldenaster
- Cocklebur
- Cockspur Hawthorn
- Coconut Palm
- Coffee Senna
- Cogongrass
- Coker's Bugleweed, Carolina Bugleweed
- Collins's Sedge
- Colombian Watermeal
- Colombian Waxweed
- Colonial Barbara's-buttons, Broadleaf Barbara's-buttons
- Colonial Dwarf-dandelion
- Columnar Prairie Coneflower
- Comb Seymeria
- Combs Panic Grass
- Common Agrimony
- Common Apple
- Common Atamasco-lily
- Common Bamboo
- Common Black-cohosh, Early Black-cohosh
- Common Blue Cohosh, Green Vivian
- Common Blue Curls
- Common Bogbuttons
- Common Bristly Locust
- Common Brome Sedge
- Common Bunched Beaksedge
- Common Burdock
- Common Bushy Bluestem
- Common Butterfly-weed
- Common Carpetgrass
- Common Carrionflower
- Common Cattail
- Common Chickweed
- Common Chinquapin
- Common Climbing Buckwheat
- Common Cosmos
- Common Cutleaf Coneflower, Goldenglow
- Common Dandelion
- Common Dayflower
- Common Deerberry
- Common Dewberry
- Common Dog-fennel, Yankeeweed
- Common Dwarf St. John's-wort
- Common Eastern Brome, Canada Brome
- Common Eastern Wild-rye, Terrell Grass
- Common Elderberry
- Common Elegant Blazing-star
- Common Elephant’s-foot
- Common Evening-primrose
- Common Flax
- Common Forked Whitlow-wort, Hairy Forked Nailwort
- Common Frostweed
- Common Garden Canna
- Common Germander
- Common Golden-Alexanders
- Common Grass-pink
- Common Greenbriar, Bullbriar, Horsebriar
- Common Ground-pine, Flat-branched Tree-clubmoss
- Common Groundnut
- Common Groundsel
- Common Hairgrass, Wavy Hairgrass
- Common Hairsedge
- Common Hairy Coreopsis
- Common Horseweed
- Common Ironweed
- Common Ivy, English Ivy
- Common Jack-in-the-pulpit
- Common Lantana, Hedgeflower
- Common Little Bluestem
- Common Mallow, High Mallow, Cheeses
- Common Marigold
- Common Marsh St. John's-wort
- Common Matrimony-vine, Wolfberry, Goji Berry
- Common Milkweed
- Common Morning-glory
- Common Mouse-ear
- Common Mugwort, Felon Herb
- Common Naiad, Southern Naiad
- Common New Jersey Tea
- Common October-flower
- Common Partridge-pea
- Common Pawpaw, Indian-banana
- Common Pear
- Common Periwinkle, Myrtle
- Common Peruvian-daisy, Devil’s-delight, Raceweed, Quickweed
- Common Plantain, Whiteman's-foot
- Common Pokeweed
- Common Privet
- Common Purslane Speedwell, Neckweed
- Common Purslane, Garden Purslane, Pussley, Pursley
- Common Pyxie-moss, Big Pyxie
- Common Ragweed
- Common Reed
- Common Rockcap Fern
- Common Roseling
- Common Rough Fleabane
- Common Roundleaf Eupatorium
- Common Running-cedar, Fan Ground-pine
- Common Rush
- Common Rush, Soft Rush
- Common Sensitive-plant
- Common Shagbark Hickory
- Common Shepherd's Purse
- Common Shorthusk
- Common Silverbell, Mountain Silverbell
- Common Smartweed, Waterpepper, Marshpepper Smartweed
- Common Smooth Rockcress
- Common Snailseed Pondweed
- Common Sneezeweed
- Common Sow-thistle
- Common Speedwell, Gypsyweed, Heath Speedwell
- Common Spikerush, Small's Spikerush
- Common Spreading Chervil
- Common Stargrass, Eastern Stargrass
- Common Stitchwort, Lesser Stitchwort
- Common Sunflower
- Common Ten-angled Pipewort
- Common Three-lobed Coneflower
- Common Threesquare, Chairmaker's Rush, Swordgrass
- Common Toadflax
- Common Two-wing Silverbell
- Common Vervain, Blue Vervain, Simpler's-joy
- Common Water-primrose
- Common Water-purslane
- Common Water-starwort
- Common Waterweed
- Common Wax-myrtle, Southern Bayberry
- Common White Heart-leaved Aster
- Common White Snakeroot, Common Milk-poison
- Common Wild Ginger
- Common Wild Ginger
- Common Wild Quinine
- Common Wingstem
- Common Winter-cress, Yellow Rocket
- Common Wood-rush
- Common Woodreed, Sweet Woodreed
- Common Woodsia, Blunt-lobed Cliff Fern
- Common Wormwood, Absinthium
- Common Yellow Thistle
- Common Yellow Wood-sorrel
- Compact Dodder
- Confederate Daisy
- Coontail
- Coppery St. John's-wort
- Coral Ardisia, Coralberry, Spiceberry, Hen’s Eyes, Marlberry
- Coral Bean, Cardinal-spear
- Coral Bristlegrass
- Coral Dropseed
- Coral Greenbriar, Red-berried Swamp Smilax
- Coral Honeysuckle
- Coralbeads, Carolina Moonseed, Snailseed, Red Moonseed
- Coralberry
- Coriander, Cilantro, Mexican-parsley, Chinese-parsley
- Corkwood, Water Toothleaf
- Corn Chamomille
- Corn Crowfoot, Hungerweed
- Corn Marigold, Corn Chrysanthemum
- Corn Speedwell, Wall Speedwell
- Corn Spurry
- Corn-gromwell
- Corn, Maize
- Corncockle, Purple Cockle, Corn-campion
- Cornflag
- Cornflower, Batchelor's-buttons
- Cotton Burdock
- Cottonbatting Plant
- Cottonleaf Golden-aster
- Cow-cockle, Cow-herb
- Cowbag Clover, Balloon-sack Clover, Poverty Clover
- Cowbane, Pig-potato
- Coyote Gourd, Buffalo Gourd
- Crabweed, Mulberry-weed, Foolish-weed
- Crag-jangle, Rock Alumroot
- Cranefly Orchid
- Crape-myrtle
- Cream Avens
- Creamy Violet
- Creamy Wild Indigo
- Creeping Aster
- Creeping Bentgrass
- Creeping Blueberry
- Creeping Bluet, Fairy-footprints, Roundleaf Bluet
- Creeping Burhead
- Creeping Buttercup, Meg-many-feet
- Creeping Charlie, Creeping Jenny, Moneywort
- Creeping Cucumber, Mouse Melon
- Creeping Dayflower
- Creeping Eryngo, Spreading Eryngo
- Creeping Frogfruit, Capeweed, Turkey-tangle, Matgrass
- Creeping Lady's-sorrel
- Creeping Lilyturf
- Creeping Little Bluestem
- Creeping Lovegrass, Teal Lovegrass
- Creeping Oxeye
- Creeping Phlox
- Creeping Rush
- Creeping Seedbox
- Creeping Spotflower
- Crested Coralroot, Brunetta
- Crested Floating Heart, Water Snowflake
- Crested Fringed Orchid, Golden Fringed Orchid
- Crested Goosefoot
- Crested Greenhead Sedge
- Crimson Clover
- Crinkleroot, Toothwort
- Crisped Bunchflower
- Crookedwood, Dragonwood, Staggerbush
- Cross-vine
- Crow-poison
- Crowfoot Grass
- Crowfoot Sedge, Ravenfoot Sedge
- Crown-vetch
- Cuban Copperleaf
- Cuban-bulrush
- Cucumber
- Cucumber-leaf Sunflower
- Cucumber-tree, Cucumber Magnolia
- Cudrania, Strawberry-bush
- Cultivated Tobacco
- Culver's-root
- Cumberland Sedge
- Curly Dock
- Curlyheads
- Curlyleaf Yucca, Spoonleaf Yucca
- Cursed Buttercup, Celery-leaf Crowfoot
- Curtis’s Crown Grass
- Curtis’s Goldenrod
- Curtiss' evening primrose
- Curtiss's Dropseed
- Curtiss's Three-awn
- Curtiss's Yellow-eyed Grass
- Curve-leaf Yucca
- Cut-leaf Grape Fern, Dissected Grapefern
- Cut-leaved Blackberry, Evergreen Blackberry
- Cuthbert Holly
- Cuthbert's Onion
- Cuthbert’s Turtlehead
- Cutleaf Crane's-bill
- Cutleaf Evening-primrose
- Cutleaf Goosefoot, Scented Goosefoot
- Cutleaf Medick
- Cutleaf Toothwort
- Cymose Beakrush
- Cyperus thyrsiflorus
- Cypress Spurge, Graveyard Spurge
- Cypress-knee Sedge, Epiphytic Sedge
- Cypress-vine
D
104 plants
- Daffodil, Buttercup
- Dahlberg Daisy, Golden-fleece
- Dahoon, Cassena
- Dangleberry
- Dark Green Sedge
- Dark Indigo-bush
- Darnel, Darnel Ryegrass
- Deceptive Bluestem
- Deceptive Spinypod
- Deep-rotted sedge, Woodrush flatsedge
- Deer-root
- Deer-tongue Witchgrass
- Deer's-tongue, Vanilla-leaf
- Deergrass, Deerhair Bulrush
- Dehiscent Witch Grass
- Delicate Tree-clubmoss, Pennsylvania Ground-pine, Hickey's Tree-clubmoss
- Delta Arrowhead
- Dense Panic Grass
- Dense-flower Smartweed
- Deodar Cedar
- Deptford Pink
- Devil's Beggar-ticks
- Devil's Horsewhip
- Devil's-bit
- Devil's-walking-stick, Hercules's-club, Prickly-ash
- Diamond-flower
- Dicliptera, Branched Foldwing
- Diffuse Rush, Slim-pod Rush
- Diffuse-branched Bluet
- Dimpled Trout Lily
- Ditch-stonecrop, American Penthorum
- Dixie Ticktrefoil
- Dog-mustard, Rocket-weed, French Rocket
- Dogweed
- Dollarweed
- Dominican Signalgrass
- Dooryard Knotweed
- Dooryard Violet, Confederate Violet, Common Blue Violet
- Dotted Duckmeat
- Dotted Smartweed
- Doubleform Snoutbean
- Dove's-foot Crane's-bill
- Doveweed, Tooth-leaved Croton, Sand Croton
- Downy Agrimony
- Downy American Snowbell
- Downy Brome, Downy Chess, Downy Cheat, Junegrass, Cheatgrass.
- Downy Bur-clover, Bur Medick, Little Bur Clover
- Downy Goldenrod
- Downy Goldenrod
- Downy Goldenrod
- Downy Lettuce
- Downy Lobelia
- Downy Maiden Fern, Soft Fern
- Downy Milkpea
- Downy Oak-leech, Virginia Oak-leech
- Downy Phlox
- Downy Rattlesnake-orchid
- Downy Serviceberry
- Downy Sweet-pepperbush, Downy White-alder
- Downy Trailing Lespedeza
- Downy Woodmint
- Dragon's-mouth, Bog-rose, Arethusa
- Drooping Bulrush
- Drooping Sedge
- Drooping star-of-Bethlehem
- Drooping woodreed, Slender woodreed
- Drummond's dropseed
- Drummond's Sedge
- Dryland White Bluestem
- Dudley's Rush
- Dune Blue Curls, Carolina Blue Curls
- Dune Camphorweed
- Dune Finger-grass
- Dune Greenbriar
- Dune Ground-cherry
- Dune Hairgrass, Sweet Grass
- Dune Marsh-elder
- Dune Nightshade
- Dune Pennywort
- Dune Prickly-pear, Sand-bur Prickly-pear, Little Prickly-pear, Creeping Cactus
- Dune Sandspur
- Dutchman's Britches
- Dwarf Arrowhead
- Dwarf Azalea
- Dwarf Beaksedge
- Dwarf Bladderwort, Minute Bladderwort
- Dwarf Crab Grass
- Dwarf Crested Iris
- Dwarf Dangleberry
- Dwarf Filmy Fern
- Dwarf Glasswort, Dwarf Saltwort
- Dwarf Hackberry, Georgia Hackberry
- Dwarf Indigo-bush
- Dwarf Larkspur
- Dwarf Live Oak
- Dwarf Mouse-ear
- Dwarf Palmetto
- Dwarf Serviceberry
- Dwarf Stinging Nettle
- Dwarf Sundew
- Dwarf Umbrella-sedge
- Dwarf Upland Willow, Sage Willow
- Dwarf Witchgrass
- Dwarf-flower Heartleaf
E
124 plants
- Eared Goldenrod
- Earleaf Foxglove
- Early Bluegrass
- Early Crown Grass
- Early Forget-me-not
- Early Goldenrod
- Early Hair Grass, Spike Hairgrass
- Early Meadowrue
- Early Saxifrage
- Early St. Johnswort
- Early Winter-cress
- Earthsmoke
- East Asian Smartweed
- East Indian Swampweed, Hygro, Miramar-weed, East Indian Hygrophila
- Easter lily, November lily
- Easter-bell, Greater Stitchwort
- Eastern Agueweed
- Eastern Anglepod
- Eastern Bastard-toadflax
- Eastern Beardtongue
- Eastern Bergamot
- Eastern Bishopweed, Atlantic Bishopweed
- Eastern Blackfoot Quillwort
- Eastern Blue Monkshood, Appalachian Blue Monkshood
- Eastern Blue Phlox, Timber Phlox
- Eastern Box Elder, Ash-leaved Maple
- Eastern Bracken
- Eastern Cottonwood
- Eastern Doll's-daisy
- Eastern False-boneset
- Eastern Few-fruited Sedge
- Eastern Figwort
- Eastern Flowering Spurge
- Eastern Fox Sedge
- Eastern Goat's-beard
- Eastern Gray Goldenrod
- Eastern Green-eyes
- Eastern Gum Bumelia, Eastern Gum Bully
- Eastern Hawthorn
- Eastern Hemlock, Canada Hemlock
- Eastern Horse-mint
- Eastern Indian-paintbrush
- Eastern Longleaf Bluet
- Eastern Lousewort, Wood-betony
- Eastern Milkpea
- Eastern Mosquito Fern, Water fern
- Eastern Narrow-leaved Sedge
- Eastern Needlegrass, Black Oatgrass
- Eastern Ninebark
- Eastern Pearlwort
- Eastern Poison Ivy
- Eastern Prairie Anemone, Ten-petal Anemone
- Eastern Purple Coneflower
- Eastern Red Cedar
- Eastern Red Maple
- Eastern Redbud
- Eastern Riverbank Wild-rye
- Eastern Rose-mallow
- Eastern Rough Sedge
- Eastern Roughleaf Dogwood
- Eastern Salt-marsh Aster
- Eastern Sensitive-briar
- Eastern Serviceberry
- Eastern Shooting Star
- Eastern Silvery Aster
- Eastern Skeleton Grass, Eastern Beard Grass
- Eastern Slender Toothwort
- Eastern Solomon's-plume, False Solomon's-seal
- Eastern Spring-beauty
- Eastern Star Sedge
- Eastern Sunflower-everlasting, Eastern Oxeye
- Eastern White Pine
- Eastern Winged Sumac
- Eastern Woodland Sedge
- Eastern Yellow Passionflower
- Eaton's Ladies'-tresses
- Eaton's Witchgrass
- Ebony Sedge, Bristle-leaf Sedge
- Ebony spleenwort
- Edible Fig, Garden Fig
- Eggert's Sunflower
- Eglantine Rose, Sweetbriar Rose
- Elegant Hair Grass
- Elephant's-ear, Taro, Dasheen
- Elf-orpine
- Elliott's Beaksedge
- Elliott's Bentgrass, Southern Bentgrass
- Elliott's Hairsedge
- Elliott's Lovegrass
- Elliott's Milkpea
- Elliott's Rush
- Elliott’s Bluestem
- Elliott’s Sedge
- Elliottia, Southern-plume, Georgia-plume
- Emmons’s Sedge
- Engalmann's Arrowhead
- Engelmann’s Spikerush
- English bluebell
- English Plantain, Rib-grass
- English Rye-grass, Perennial Rye-grass
- Entangled Hawthorn
- Epiphytic flatsedge
- Erect Dayflower
- Erect Knotweed
- Erect Milkpea
- Erect Spiderling
- Erect-leaved Witchgrass
- Eulalia, Chinese Silver Grass
- Eurasian Self-heal
- Eurasian Water-milfoil
- European Black Nightshade
- European Blackberry
- European Calamus, Sweetflag
- European Corn-salad
- European Field Pansy
- European Heliotrope
- European Lily-of-the-Valley
- European Mock-orange
- European Squirrel-tail Fescue, Brome Fescue
- European St. John's-wort
- European Vervain, Juno's Tears, Herb-of-the-cross
- Evergreen Barberry
- Everlasting Pea, Perennial Sweet Pea
- Eyebane
F
160 plants
- Fall Rain-lily
- Fall Witchgrass
- False corn-flag
- False Hop Sedge
- False spotted St. Johnswort
- False-dandelion
- False-nettle
- False-willow
- Fancy Fern, Evergreen Wood-fern
- Fanwort
- Farkleberry, Sparkleberry
- Fascicled Beaksedge
- Feather-bristled Beaksedge
- Featherfoil, Water-violet
- Featherstem Clubmoss, Prostrate Bog Clubmoss
- Feathery Mermaid-weed
- Fennel
- Fern Flatsedge
- Fern Grass
- Fernald's Tick-trefoil
- Fernleaf Phacelia, Forest Phacelia
- Fescue Sedge
- Feverfew
- Few-bracted Beggar-ticks
- Few-flower Beaksedge
- Few-flower Milkweed
- Few-flowered Nutrush
- Few-flowered Tick-trefoil
- Few-flowered Witchgrass
- Fibrous Bladderwort
- Fibrous-rooted Sedge
- Fiddle Dock
- Fiddler’s Spurge, Mexican Fireplant
- Field Bindweed, Creeping Jenny, Possession-vine, Cornbind
- Field Brome
- Field Burweed, Lawn Burweed, Spurweed
- Field Dodder, Prairie Dodder
- Field Forget-me-not, Field Scorpion-grass
- Field Garlic, Onion-grass, Wild Onion
- Field Horsetail
- Field Paspalum
- Field Pennycress, Frenchweed
- Field Pepperwort, Cow Cress, Field Cress
- Field Thistle
- Field-madder
- Fig Buttercup
- Fig Buttercup
- Finger Millet
- Finger Sprangletop, Umbrella Canegrass
- Fire-pink
- Fireweed
- Five-leaf, Five-leaf Akebia, Chocolate-vine
- Fiveangled Dodder
- Fivelobe Cucumber
- Flaccid Nutrush
- Flame Azalea
- Flat-spiked Sedge
- Flatfruit Beaksedge
- Flatrock Draba, Open-ground Whitlow-grass, Sun-loving Draba, Granite Whitlow-wort
- Flatrock onion
- Flatrock Panic Grass
- Flatrock Phacelia
- Flatrock Pimpernel, Riverbank Pimpernel
- Flatrock Portulaca
- Flatstem bladderwort
- Flattened Pipewort
- Flattop Goldenrod
- Flatwood Chaffhead
- Flaxleaf False Foxglove
- Flaxleaf Seedbox
- Fleshy Milkweed
- Flexuous White-edge Sedge
- Floating Bladderwort, Small Swollen Bladderwort
- Floating Mannagrass, Eastern Mannagrass
- Floating Primrose-willow
- Florida Adder's-mouth
- Florida Atamasco-lily, Red-margined Atamasco-lily
- Florida Bellwort
- Florida Betony, Rattlesnake-weed
- Florida Bladderwort
- Florida Cottonseed, Common Cottonweed
- Florida Deerberry, Whiteleaf Deerberry
- Florida Dock
- Florida Dropseed
- Florida Elm
- Florida Goat’s-rue
- Florida Goat’s-rue
- Florida Goldbeard, Florida Rhaphis
- Florida Grape
- Florida Horsebalm
- Florida Ladies'-tresses
- Florida Lantana
- Florida Paspalum
- Florida Peanut-grass, Blue Maiden-cane
- Florida Pellitory
- Florida Sanicle, Florida Snakeroot
- Florida Scrub Sunrose, Nash's Sunrose
- Florida Sedge
- Florida Soapberry
- Florida Star-anise
- Florida Sunflower
- Florida Three-lobed Bedstraw
- Florida Tick-trefoil
- Florida Wild Yam
- Florida Yellow Flax
- Florida Yellow-eyed Grass
- Florida-privet
- Florist's Gayfeather
- Flower-of-an-hour, Venice Mallow
- Flowering Dogwood
- Fly-poison
- Fool's Watercress
- Forest Bedstraw
- Forest Bluegrass
- Forest Hawthorn
- Forest Sunflower
- Fork-tip Three-awn
- Forked Fimbry
- Forked Rush
- Forked Witchgrass
- Forktip Three-awn
- Formosa lily
- Formosan Firethorn
- Fortune's Net-veined Holly Fern
- Fountaingrass, Tender Fountaingrass
- Four-angle Sabatia
- Four-angled Flatsedge
- Four-leaved Allseed
- Fourleaf Milkweed
- Fourleaf Vetch
- Fowl Bluegrass, Fowl Meadow-grass
- Fowl Mannagrass
- Fox Grape
- Fox Sedge
- Foxtail Barley, Squirreltail Barley
- Foxtail Chess, Red Brome
- Foxtail Clubmoss
- Foxtail-millet, Italian-millet
- Fragrant Beaksedge
- Fragrant False Garlic
- Fragrant Flatsedge
- Fragrant Ladies'-tresses, Marsh Ladies'-tresses
- Fragrant Rabbit Tobacco
- Fragrant Sumac, Squawbush
- Frank’s Sedge
- Fraser Magnolia, Mountain Magnolia, Earleaf Umbrella-tree
- Fraser's Loosestrife
- Fraser's Sedge, Lily-leaf Sedge
- French Broad Heartleaf
- French Rose
- Fringe-tree, Old Man's Beard
- Fringed Beaksedge
- Fringed Loosestrife
- Fringed Stargrass
- Frisolillo
- Frost Grape, Winter Grape, Chicken Grape
- Frosted Hawthorn
- Fumitory, Earthsmoke
- Fuzzy Flatsedge
- Fuzzy Sedge, Hairy-leaved Sedge
G
157 plants
- Galax
- Gall-of-the-earth
- Gama Grass
- Gaping Panic Grass
- Garden Bean, Green Bean, Snap Bean, String Bean, Kidney Bean, Pole Bean, Bush Bean
- Garden Evening-primrose
- Garden Four-o'clock, Marvel-of-Peru
- Garden Mignonette
- Garden Onion
- Garden Parsley
- Garden Petunia
- Garden Phlox
- Garden Pink, Grass Pink
- Garden Strawberry, Cultivated Strawberry
- Garden Vervain
- Garden Zinnia, Elegant Zinnia
- Garlic
- Garlic Mustard, Hedge Garlic
- Gattinger's Panic grass
- Gaywings, Fringed Polygala, Flowering Wintergreen, Bird-on-the-wing
- Georgia Aster
- Georgia Beargrass, Sandhills Lily
- Georgia Blazing-star
- Georgia Bulrush
- Georgia Calamint
- Georgia Holly, Chapman's Holly
- Georgia Indigo-bush
- Georgia Ironweed
- Georgia Ironweed
- Georgia Nutrush
- Georgia Oak
- Georgia Rush, Flatrock Rush
- Georgia St. John's-wort, Sparse-leaved St. John’s-wort, Grit St. John’s-wort
- Georgia Sunrose, Georgia Frostweed
- German Iris, Fleur-de-Lys
- Gholson's Sedge
- Giant Arrowhead
- Giant Bulrush, Southern Bulrush, Tule
- Giant Cane, River Cane
- Giant Coneflower
- Giant Cordgrass
- Giant Ragweed
- Giant Reed
- Giant Sacaton
- Giant Salvinia, Kariba Weed
- Giant Sedge
- Giant Spiral Orchid
- Giant Timber Bamboo
- Giant Yellow-eyed Grass
- Gill-over-the-ground, Ground-ivy
- Gingerbush
- Ginseng, Sang, American Ginseng
- Girdle-pod
- Glade Blue-eyed-grass
- Glade Blue-eyed-grass
- Glade Fern
- Glade Lobelia
- Glade Ragweed
- Glade Rushfoil, Outcrop Rushfoil, Broadleaf Rushfoil, Willdenow's Croton
- Gladiolus
- Glaucous King-devil
- Globe Beaksedge
- Globe Flatsedge
- Globe-amaranth
- Globe-fruited Seedbox
- Globular Prairie Coneflower, Grey-headed Coneflower, Drooping Coneflower
- Glossy Privet, Broadleaf Privet
- Glossy-seed Stargrass
- Goat-weed, Sweet-broom, Licorice-weed
- Goat's-beard, Yellow Salsify
- Godfrey's Forestiera
- Godfrey's Sandwort
- Godfrey's Sedge
- Golden Bamboo, Fishpole Bamboo
- Golden Canna, Yellow Canna
- Golden Club, Bog Torches, Never-wet
- Golden Colic-root
- Golden Fringeless Orchid, Yellow Fringeless Orchid
- Golden Ragwort, Heartleaf Ragwort
- Golden rain tree
- Golden-eye
- Golden-saxifrage, Water-mat, Water-carpet
- Golden-seal
- Goldfoot Fern, Golden Polypody
- Goldie's Wood-fern
- Gophertail Lovegrass
- Gopherweed
- Gorge Filmy Fern
- Gorge Goldenrod
- Gorge Rhododendron, Punctatum
- Goutweed
- Grace Garlic, False Garlic
- Graceful Sandmat
- Graceful Sedge
- Granite Dome Bluet
- Granite Dome Goldenrod, Cliffside Goldenrod
- Granite Dome Locust, Highlands Locust, Hartwig's Locust
- Granite Dome St. John's-wort
- Granite Flatsedge
- Granite Hedge-hyssop
- Grape-hyacinth
- Grass-leaved Ladies'-tresses, Giant Ladies'-tresses
- Grass-leaved Rush
- Grassleaf Barbara's-buttons
- Grassleaf Roseling
- Grassleaf Spurge
- Grassleaf Yellow-eyed Grass
- Grasslike Fimbry
- Grassy Arrowhead
- Gray Ground-cherry, Strawberry-tomato, Dwarf Cape-gooseberry
- Gray Mouse-ear
- Gray Oak
- Gray Poplar
- Gray Willow
- Gray's Beaksedge
- Gray’s Flatsedge
- Great Blue Lobelia
- Great Indian-plantain
- Great Laurel, White Rosebay, Great Rhododendron
- Great Plains Flatsedge
- Great Plains Flatsedge
- Great Yellow Wood-sorrel
- Greater Bladderwort
- Greater Caltrop
- Greater Duckweed, Minnow-fole
- Greater Periwinkle
- Greater Straw Sedge
- Grecian Foxglove, Hairy Foxglove
- Green Adder's-mouth
- Green Amaranth, Powell's Amaranth
- Green Antelope-horn
- Green Arrow-arum, Tuckahoe
- Green Ash, Red Ash
- Green Bristlegrass
- Green Cliffbrake
- Green Dragon
- Green Flatsedge
- Green Flatsedge, Marsh Flatsedge
- Green Fringed Orchid, Ragged Fringed Orchid, Ragged Orchid
- Green Hawthorn
- Green kiwi-fruit, Chinese gooseberry
- Green Milkweed
- Green silkyscale
- Green Sprangletop
- Green-fly Orchid
- Green-violet
- Greenfruit Clearweed, Coolwort, Richweed
- Greenish-white Sedge
- Grooved Beaksedge
- Groovestem Indian-plantain
- Grotto Alumroot
- Grotto-felt, Appalachian Trichomanes, Weft Fern
- Ground Juniper, Mountain Juniper, Common Juniper
- Guinea Grass
- Gulf Coast Lupine
- Gulf Coast Silvery Aster
- Gulf Coast Spikerush
H
122 plants
- Hackberry-leaf Goldenrod
- Hairgrass
- Hairless Witchgrass
- Hairy Angelica, Deadly Angelica
- Hairy Arrowhead
- Hairy Bedstraw
- Hairy Bittercress
- Hairy Bluestem
- Hairy Chess, Meadow Brome
- Hairy Dangleberry
- Hairy Fimbry
- Hairy Goldenrod
- Hairy Grama
- Hairy Highbush Blueberry, Black Highbush Blueberry
- Hairy Indigo
- Hairy Lespedeza
- Hairy Lipfern
- Hairy Maiden Fern
- Hairy Meadow-beauty, Maid Marian
- Hairy Mock-orange, Cumberland Mock-orange
- Hairy Nightshade, Viscid Nightshade
- Hairy Nutrush
- Hairy Phlox, Chalice Phlox
- Hairy Pineywoods Goldenrod
- Hairy Pinweed
- Hairy Seedbox
- Hairy Skullcap
- Hairy Smallleaf Ticktrefoil
- Hairy Smartweed
- Hairy Solomon's-seal
- Hairy Spiderwort
- Hairy St. John’s-wort
- Hairy Sunflower
- Hairy Umbrella-sedge
- Hairy waterleaf
- Hairy White Oldfield Aster
- Hairy Wicky
- Hairy Wood0rush
- Hairyjoint Meadowparsnip
- Hairyseed Crown Grass
- Halberd-leaf Tearthumb
- Hale's Pentodon
- Hall's Panicgrass
- Hammock Sedge
- Hammock Spiderlily, Woodland Spiderlily, Northern Spiderlily
- Hard Fescue
- Hardhack, Steeplebush
- Hare Barley
- Hare's Ear Mustard, Treacle Mustard
- Harlequin Glory-bower
- Harper's Beaksedge
- Harper's Fimbry
- Harper's Seedbox
- Harper's St. John's-wort
- Harper’s Scrub-balm
- Harper’s Sedge
- Harperella
- Harvey's Beaksedge
- Hay-scented Fern, Pasture Fern, Boulder Fern
- Hazel Dodder
- Heart-leaved Aster
- Heartleaf Climbing Hempweed
- Heartleaf Foamflower
- Heartleaf Golden-Alexanders
- Heartleaf Pickerelweed
- Heartleaf Sandmat
- Heartleaf Skullcap
- Heartleaf Tick-trefoil, Clusterleaf Tick- trefoil
- Hedge Bamboo, Dwarf Bamboo
- Hedge Mustard
- Heller's Rabbit Tobacco
- Hellroot, Lesser Broomrape
- Helmet Skullcap
- Hemp Dogbane, Indian-hemp
- Hemp, Marijuana
- Henbit, Henbit Dead-nettle
- Herb Sophia
- Herba Impia
- Heron's-bill, Common Stork's bill, Redstern Filaree, Alfileria, Pin-clover
- Hidden-flowered Witchgrass
- Hill Cane
- Hillside Blueberry, Dryland Blueberry
- Hillside Hawthorn
- Hirsute Sedge
- Hispid Bommer Fern, Copper Fern, Hairy Bommer
- Hispid Buttercup, Hairy Buttercup
- Hispid Starbur
- Hoary Bowlesia
- Hoary Puccoon, Indian-paint
- Hoary Skullcap
- Hoary Tick-trefoil
- Hog Plum, Flatwoods Plum
- Hog-peanut
- Hog-peanut
- Hollow-stem Joe-pye-weed
- Holy-flax, Lavender-cotton, Cypress Lavender-cotton
- Honesty-weed, Rattleweed
- Honewort
- Honey Locust
- Honeydew, Winter Melon
- Hooded Arrowhead
- Hooded Pitcherplant
- Hooked Buttercup, Hooked Crowfoot
- Hop Clover
- Hop Sedge
- Hop-tree
- Horehound
- Horned Bladderwort
- Horned Pondweed
- Horse Mint
- Horse-nettle, Ball-nettle
- Horse-purslane
- Horsechestnut
- Horsetail Spikerush
- Howe's Sedge
- Huger's Carrionflower
- Hybrid Asian Wisteria
- Hybrid Cattail
- Hydrilla
- Hyssop-leaved Hedge-nettle
- Hyssopleaf Eupatorium
- Hyssopleaf Sandmat
I
27 plants
- Illinois pinweed
- Illinois Pondweed
- India Lovegrass
- Indian Crabgrass
- Indian Cucumber-root
- Indian Cupscale
- Indian Dayflower
- Indian Paspalum, Kodomillet
- Indian Pipes
- Indian Tobacco, Wild Tobacco
- Indian-apple
- Indian-midden Morning-glory, Manroot
- Indian-shot, Platanillo
- Indian-strawberry
- Indian-tobacco
- Inland American Hornbeam
- Inland Roundleaf Eupatorium
- Inland Water-hemp
- Interrupted Fern
- Irisleaf Yellow-eyed Grass
- Isopyrum, False Rue-anemone
- Italian Gladiolus
- Italian Plumeless-thistle
- Italian Rye-grass, Annual Rye-grass
- Itch-grass
- Ivyleaf Morning-glory
- Ivyleaf Speedwell
J
38 plants
- Jackson-briar
- Jacksonville Hawthorn
- Jacquemontia
- Jagged Chickweed
- Jamaica Weed
- Jamaican Crabgrass
- James's Sedge
- Japanese Barberry
- Japanese Black Pine
- Japanese Chess, Japanese Brome
- Japanese Climbing Fern
- Japanese Dodder
- Japanese evergreen oak
- Japanese false spleenwort
- Japanese Holly
- Japanese Honeysuckle
- Japanese Hops
- Japanese Lovegrass, Feather Lovegrass
- Japanese Millet
- Japanese Millet, Billion-dollar Grass, White Panic, Siberian Millet
- Japanese Pittosporum, Australian Laurel
- Japanese Privet
- Japanese Spiraea
- Japanese Stilt-grass, Flexible Sasa-grass, Japanese-grass
- Japanese Wisteria
- Japanese-clover, Common Lespedeza
- Jerusalem Artichoke
- Jerusalem Thorn, Retama, Horse-bean, Mexican Palo Verde
- Jerusalem-cherry
- Jetbead
- Jewels-of-Opar, Pink Baby’s-breath
- Jimsonweed
- Johnson Grass
- Joint Paspalum, Knotgrass
- Jointed Flatsedge
- Joor's Sedge, Hummock Sedge, Cypress-swamp Sedge
- Jumpseed
- Jungle-rice
K
25 plants
- Keeled Bulrush
- Kelsey's Locust
- Kentucky Bluegrass, Junegrass, Speargrass
- Kentucky Coffee-tree, Kentucky Mahogany
- Kerria, Japanese-rose
- Kidney Sedge
- Kidney-leaved Grass-of-Parnassus
- Kidneyleaf Buttercup
- Kidneyleaf Mudplantain
- King Ranch Bluestem
- Kiss-me-over-the-garden-gate, Prince's-feather, Prince's-plume
- Kiss-me-quick
- Knotroot Bristlegrass, Perennial Foxtail-grass
- Knotted Bur-parsley
- Knotted Clover
- Knotweed
- Korean Lawngrass, Zoysia
- Korean Lespedeza, Korean-clover
- Kral's Elegant Blazing-star
- Kral's Goldenrod
- Kral's Sedge
- Krauss's Spikemoss, Mat Spikemoss
- Kudzu
- Kunth's Maiden Fern, Southern Shield Fern
- Kunth's Witchgrass
L
182 plants
- Lace-lip Ladies'-tresses
- Lacegrass
- Lacegrass
- Ladder Brake, Chinese Ladder Brake
- Lady-rue, Mountain Meadowrue
- Lady's-thumb, Heart's-ease
- Lake Ella Hawthorn
- Lamarck’s Bedstraw
- Lamb's-quarters, Pigweed
- Lanate Hawthorn
- Lance’s Hawthorn
- Lanceleaf Anemone
- Lanceleaf Loosestrife
- Lanceleaf Pickerelweed
- Lanceleaf Ragweed
- Lanceleaf Rose-gentian, White Sabatia
- Lanceleaf Seedbox
- Lanceleaf Trillium, Narrowleaf Trillium
- Lanceleaf Violet
- Large Death-camas, Snakeroot
- Large Grass-leaved Rush
- Large Hop Clover, Yellow Clover
- Large Path Rush, Large Poverty Rush
- Large Sea-purslane, Shoreline Sea-purslane
- Large Solomon's-seal, King Solomon's-seal
- Large Spreading Pogonia
- Large Stalk-grain Sedge
- Large Thyme-leaved Sandwort
- Large Twayblade, Mauve Sleekwort, Russet-witch, Brown Wide-lip Orchid
- Large Water-celery
- Large White Fringed Orchid
- Large Whorled Pogonia, Large Five-leaves
- Large Witch-alder
- Large Yellow Lady's-slipper, Whippoorwill Shoes
- Large Yellow Vetch
- Large-bracted Tick- trefoil
- Large-flower Heartleaf
- Large-flowered Bellwort
- Large-flowered Coreopsis
- Large-flowered Coreopsis
- Large-flowered Hibiscus
- Large-flowered Rock-pink
- Large-flowered Trillium, White Trillium, Great White Trillium
- Large-fruited Arrowhead
- Large-headed Rush
- Large-tubercled Spikerush
- Largeflower Evening Primrose
- Largeflower Milkweed
- Largeleaf Marshpennywort
- Larkspur Coreopsis
- Late Eupatorium
- Laurel Oak
- Lawn Water-pennywort
- Lazy Sedge
- Leaf mustard, Brown Mustard, Indian Mustard, Mustard Greens, Chinese Mustard
- Leafless Swallow-wort
- Leafy Bulrush
- Leafy Elephant's-foot
- Leafy Hawkweed
- Leafy Meadow Phlox
- Leafy Pineywoods Goldenrod
- Leafy Pondweed
- Least duckweed
- Least Snoutbean
- Leatherleaf Mahonia, Chinese Mahonia, Holly-grape
- Leatherleaf, Cassandra
- Leatherwood, Leatherbark, Wicopee, Rope-bark
- Leathery Rush
- Leavenworth's Goldenrod
- Leavenworth’s Sedge
- Leconte's Flatsedge
- LeConte's Thistle
- LeConte’s Violet, Sand Violet
- Lemon Balm, Common Balm
- Lemon Bergamot
- Leopard's-bane, Southeastern Arnica
- Lesser calamint, Basil-thyme
- Lesser Canary Grass
- Lesser Chickweed
- Lesser Duckweed
- Lesser Gold-of-pleasure
- Lesser Quaking Grass
- Licorice Goldenrod
- Lighthipe's Phlox
- Lilac Tasselflower
- Lilacbell, Purple Moonflower
- Lily-of-the-valley Vine, Pampas Lily-of-the-valley
- Limesink Dog-fennel
- Limestone Bittercress, Douglass's Bittercress
- Limestone Forest Sedge
- Limestone Goldenrod, False Goldenrod, Heartleaved Goldenrod
- Limestone Meadow Sedge
- Limestone Wild-petunia
- Lindheimer's Witchgrass
- Lindley's butterflybush
- Linear-leaved Witchgrass
- Lined Sedge
- Lion's-ears, Lightning-rod-plant
- Lion's-foot, Gall-of-the-earth
- Liriope, Big Blue Lilyturf
- Little Barley
- Little Brown Jug, Arrowleaf Heartleaf
- Little Duckweed
- Little Floating Heart
- Little Gallberry, Inkberry
- Little Heartleaf
- Little Ladies'-tresses, Little Pearl-twist
- Little Lovegrass
- Little Mallow, Small-flowered Mallow
- Little Milkpea
- Little Mouse-ear
- Little People, Lepuropetalon
- Little Red Hawthorn
- Little Silverbell
- Little Sundrops
- Littlehip Hawthorn
- Live Oak
- Lizard's-tail, Water-dragon
- Lloyd's St. John's-wort
- Lobe-headed Rush
- Lobed Barren Strawberry
- Lobed Coreopsis
- Lobed Spleenwort
- Loblolly Bay, Gordonia
- Loblolly Pine, Old Field Pine
- Log Fern
- London-rocket
- Long Beach Seedbox, Coastal Plain Water-purslane
- Long Lovegrass
- Long-beak Beaksedge
- Long-flower Tobacco
- Long-fringed Sedge
- Long-headed Poppy, Blind Eyes
- Long-horned Habenaria, Michaux’s Orchid
- Long-leaved Panic Grass
- Long-ligule Witchgrass
- Long-spiked Slender Woodland Sedge
- Long-spurred Violet
- Long-stalk Crane's-bill
- Long-stalked Aster
- Long-stem Adder's-tongue
- Long's Sedge
- Long’s Rush
- Longbeard Bluestem
- Longbristle Smartweed, Bristly Lady’s-thumb
- Longleaf Cupgrass
- Longleaf Ground-cherry
- Longleaf Lobelia
- Longleaf Milkweed, Savanna Milkweed
- Longleaf Pine, Southern Pine
- Longleaf Pondweed, American Pondweed
- Longleaf Three-awn
- Longleaf Wedgescale
- Longsepal Beardtongue
- Longspike Silver Bluestem
- Longspur Creeping Bladderwort
- Longstalk Coreopsis
- Longstalk Umbrellagrass
- Loomis's Mountain-mint
- Loose Water-milfoil
- Loose-headed Beaksedge
- Lopsided Indiangrass
- Loquat
- Louisiana Sedge
- Love-chain, Queen's-jewels, Confederate-vine, Corallita
- Low Agrimony
- Low Barley
- Low Hop Clover, Little Hop Clover
- Low Rattlebox, Rabbitbells
- Low Rattlebox, Rabbitbells
- Low Showy Aster
- Low Spearwort
- Low St. John’s-wort, Straggling St. John’s-wort
- Low Starbur
- Low Stiff Witchgrass
- Low White-haired Witchgrass
- Low Wild-petunia, Hairy Wild-petunia
- Low Woodland Sedge
- Lowland Bladder Fern
- Lowland Loosestrife
- Lupine Scurfpea
- Lyreleaf Sage
M
165 plants
- Mabry's Wild Quinine
- Mad-dog Skullcap, Blue Skullcap
- Magic Lily, Surprise Lily, Hurricane Lily, Spider Lily
- Maidencane
- Maidenhair Spleenwort
- Malaysian False-pimpernel
- Maltese Star-thistle
- Many-flowered Flatsedge
- Many-flowered Grass-pink
- Many-headed Rush
- Many-seeded Plantain, Small Plantain
- Mapleleaf Viburnum, Dockmackie
- Mapleleaf Waterleaf, Canada Waterleaf, Broadleaf Waterleaf
- Maraca amarilla, Brazillian arrow-wood
- Marbled Alumroot
- Marginal Wood-fern
- Mariana Maiden Fern
- Marine-ivy
- Maritime Bushy Bluestem
- Maritime Catbriar
- Maritime Pokeweed
- Marl Spleenwort, Carolina Spleenwort, Wagner's Spleenwort, Morzenti's Spleenwort
- Maroon Sandhills Spurge, Coastal Sand Spurge
- Marsh Blue Violet, Bog Violet
- Marsh Clematis, Southern Leatherflower, Blue Jasmine
- Marsh Fern
- Marsh Fimbry
- Marsh Flat-topped Goldenrod
- Marsh Fleabane
- Marsh Frogfruit, Northern Frogfruit
- Marsh Lilaeopsis
- Marsh Water-pennywort
- Marsh-Bellflower
- Marsh-parsley
- Marshcress
- Maryland Golden-aster
- Maryland Hawkweed
- Maryland Meadow-beauty, Dull Meadow-beauty, Pale Meadow-beauty
- Maryland Sanicle, Black Snakeroot
- Maryland Tick-trefoil
- Mascarene Island Leaf-flower
- Mattamuskeet Witchgrass
- Matted Tick-trefoil
- Matted Water-starwort
- Matting Witchgrass
- Matweed Amaranth, Prostrate Pigweed
- Maximilian Sunflower
- May White Azalea, Eastman's Azalea
- May-apple, American Mandrake
- Mayberry
- Maygrass
- Mayhaw, Eastern Mayhaw
- Maypops, Purple Passionflower
- Mayweed, Stinking Chamomille, Mayweed, Dog-fennel
- Mazus
- McCartney Rose, Chickasaw Rose
- Mead's Sedge
- Meadow Barley
- Meadow fescue
- Meadow Garlic
- Meadow Sedge
- Mecardonia, Common Axil-flower
- Mediterranean Beardgrass
- Mediterranean hairgrass
- Mediterranean Lovegrass
- Mellichamp's Skullcap
- Memorial Rose, Dorothy Perkins Rose, Lucie Rose
- Menzies’s Fiddleneck
- Mesa Dropseed
- Mexican Bluebell
- Mexican Lovegrass
- Mexican primrose-willow
- Mexican Sprangletop
- Mexican Tearthumb
- Mexican Teosinte
- Mexican-poppy, Mexican Prickly-poppy
- Mexican-tea, Epazote
- Miami-Mist
- Miccosukee Gooseberry
- Michaux's Milkweed
- Michaux's Sumac, Dwarf Sumac
- Michaux's Whitlow-wort
- Midland Sedge
- Midwestern Bold Goldenrod
- Midwestern Carrionflower
- Midwestern Indian-physic
- Midwestern Ninebark
- Midwestern Poison Ivy
- Midwestern Salt-marsh Aster
- Midwestern Tickseed-sunflower
- Midwestern Tickseed-Sunflower
- Midwestern Water-hyssop
- Milk-and-wine Lily, Grass-lily, African Swamp-lily
- Milk-purslane, Spotted Spurge
- Milk-thistle, Blessed-thistle
- Millet Beaksedge
- Mimosa, Silktree
- Mingled Beaksedge
- Mississippi Hawthorn
- Missouri Rockcress
- Mistflower, Ageratum
- Mitchell Grass
- Mitchell's Sedge
- Mockernut Hickory, White Hickory
- Mohr's Eupatorium
- Mohr's Three-awn
- Mondo grass, Black mondo
- Monkey-face Orchid, White Fringeless Orchid
- Monnier's Water-hyssop
- Montbretia
- Moonseed, Yellow Parilla
- Morrow's Honeysuckle
- Mosla, Miniature Beefsteakplant
- Moso Bamboo
- Moss Vervain, South American Vervain
- Moth Mullein
- Motherwort, Lion's-tail
- Mottled Trillium, Spotted Trillium
- Mound-lily Yucca, Spanish Bayonet
- Mountain Basswood, White Basswood, Linn
- Mountain Black-cohosh, Late Black-cohosh
- Mountain Bunchflower
- Mountain Camellia, Mountain Stewartia
- Mountain Catchfly
- Mountain Doghobble, Switch-ivy
- Mountain Dwarf-dandelion
- Mountain Fetterbush
- Mountain Golden-Alexanders
- Mountain Hairy Coreopsis
- Mountain Highbush Blueberry
- Mountain Holly
- Mountain Indian-physic
- Mountain Laurel, Ivy, Calico-bush
- Mountain Maple
- Mountain Oat-grass, Allegheny Flyback
- Mountain Pachysandra, Allegheny-spurge
- Mountain Phlox, Appalachian Phlox, Allegheny Phlox
- Mountain Purple Turtlehead, Erwin’s Turtlehead
- Mountain Quillwort, Carolina Quillwort
- Mountain Spleenwort
- Mountain Stonecrop
- Mountain Sweet Pitcherplant
- Mountain Sweet-pepperbush, Mountain White-alder
- Mountain Yellow-eyed Grass
- Mourning Lovegrass
- Mouse-ear Cress
- Mouse’s-ear, Shade Betony
- Mousetail
- Muck Sunflower
- Mud-Annie, Marsh Dewflower
- Mud-babies, Dwarf-burhead
- Mud-hyssop
- Mud-midgets
- Mudbank Crown Grass, Walter's Paspalum
- Muehlenberg’s Sedge
- Mullein Foxglove
- Mullein-pink, Rose Campion
- Multiflora Rose
- Muscadine, Scuppernong
- Musk Thistle, Nodding Thistle
- Musky Mint, Cluster Bushmint
- Muster John Henry
- Myrtle Holly
- Myrtle Oak
- Myrtle-leaf St. John's-wort
N
112 plants
- Naked Tick-trefoil
- Nakedstem Dewflower
- Nandina, Sacred-bamboo
- Nardoo, Australian Waterclover
- Narrow Plume Grass
- Narrow sword fern
- Narrow-fruit Horned Beaksedge
- Narrow-fruited Fascicled Beaksedge
- Narrow-leaf Purple Everlasting
- Narrow-leaf White-topped Aster
- Narrow-leaved Blue-eyed-grass
- Narrow-leaved Bluestem
- Narrow-leaved Lespedeza
- Narrow-leaved Miterwort
- Narrow-leaved Smooth Aster
- Narrow-leaved Witchgrass
- Narrow-pod White Wild Indigo, Spiked Wild Indigo
- Narrowleaf Blue Curls
- Narrowleaf Bugleweed, Southern Bog Water-horehound
- Narrowleaf Bushy Eupatorium
- Narrowleaf Cattail
- Narrowleaf Clover
- Narrowleaf Dawnflower
- Narrowleaf Dock
- Narrowleaf Goosefoot
- Narrowleaf Loosestrife, Wand Loosestrife
- Narrowleaf Naiad
- Narrowleaf Pinweed
- Narrowleaf Pondlily, Bonnets
- Narrowleaf Rose-pink
- Narrowleaf Sunflower
- Narrowleaf Vervain
- Narrowleaf Whitetop Sedge
- Nash's Blue-eyed-grass
- Nash's Bluestem
- Nash's Witchgrass
- Navel Cornsalad
- Necklace Sedge
- Needle Palm, Blue Palmetto
- Needle Spikerush
- Needle-leaf Witchgrass
- Needle-tip Blue-eyed-grass
- Needlepod Rush
- Nerved Witchgrass
- Nerveless Woodland Sedge
- Nestronia, Conjurer's-nut, Leechbrush
- Netleaf Leather Flower
- Netted Chain Fern
- Netted Nutrush
- Nettle-leaf Sage
- Nettleleaf Goosefoot, Sowbane
- Nettleleaf Noseburn
- Neverfail
- New England Aster, Michaelmas-daisy
- New Jersey Highbush Blueberry
- New York Aster
- New York Fern
- New York Ironweed
- Nimblewill, Dropseed
- Nitgrass
- Nits-and-lice, Drummond's St. John's-wort
- Nodding Beaksedge
- Nodding Bur-marigold
- Nodding Chickweed
- Nodding Clubmoss, Staghorn Clubmoss
- Nodding Evening Primrose
- Nodding Fescue
- Nodding Foxtail Grass, Giant Foxtail-grass
- Nodding Ladies'-tresses
- Nodding Onion
- Nodding Sedge
- Nodding-head Clover
- Nonesuch Daffodil
- Northeastern Slim-spike Three-awn
- Northern Blazing-star
- Northern Bugleweed
- Northern Catalpa
- Northern Coastal Violet, Coast Violet
- Northern Crab Grass
- Northern Dwarf Huckleberry
- Northern Dwarf Huckleberry
- Northern Golden-heather
- Northern Green-and-gold, Virginia Green-and-gold
- Northern Hackberry
- Northern Long Sedge
- Northern Maidenhair
- Northern Maleberry, He-huckleberry
- Northern Meadow Phlox
- Northern Rattlesnake-master
- Northern Roughleaf Goldenrod
- Northern Saltwort
- Northern Sandspur, Common Sandspur
- Northern Seaside Spurge
- Northern Shorthusk
- Northern Six-weeks Fescue
- Northern Spicebush
- Northern Sundial Lupine
- Northern Sweet Bay
- Northern Tickseed-sunflower
- Northern Toothache Tree, Northern Prickly-ash
- Northern White Beaksedge
- Northern White Colic-root, Mealy Colic-root, Stargrass
- Northern Wild Raisin, Withe-rod, Shawnee Haw
- Northern Wild Senna
- Northern Wild-pink, Sticky Catchfly
- Northern Witch-haze
- Noyau Vine, Alamo Vine
- Nutmeg Hickory
- Nuttall's povertyweed
- Nuttall's Reedgrass
- Nuttall’s Lobelia
- Nuttall’s Tick-trefoil
O
47 plants
- Oak-leaved Fleabane
- Oakes’s Pondweed
- Oakleaf Hydrangea
- Oats
- Ocala Hawthorn
- Ocmulgee Skullcap
- Oconee Azalea
- Ogeechee Lime, Ogeechee Tupelo, Ogeechee Plum
- Oglethorpe Oak
- Oklahoma Grass-pink
- Old Plainsman
- Old World Hairsedge
- Old-field Broomstraw, Broomsedge, "Sedge Grass", "Sage Grass"
- Old-field Five-fingers
- Old-pasture Bluegrass
- Old-witch Grass, Tumbleweed, Tickle Grass
- Oldenlandia
- Oleander
- Olive Spikerush
- Olney Threesquare
- One-flowered Bedstraw
- Oneflower Hawthorn
- Open-flower Witchgrass
- Opposite-leaf Dwarf-dandelion
- Orange Cosmos
- Orange Day-lily, Tawny Day-lily
- Orange Dwarf-dandelion
- Orange Jewelweed, Orange Touch-me-not, Spotted Touch-me-not
- Orangefruit Horse-gentian
- Orchard Grass, Cock's-foot
- Oriental Arborvitae, Tree-of-life
- Oriental Bittersweet
- Oriental Pear, Japanese Pear, Chinese Pear
- Oriental poppy
- Oriental Silverleaf, Autumn-olive, Spring Silverberry
- Osage-orange, Bow-wood, Bois-d'arc, Hedge-apple
- Oval Ladies'-tresses
- Oval-flowered Witchgrass
- Oval-leaved Sedge
- Ovate Maiden Fern
- Ovateleaf Flatsedge
- Overcup Oak
- Oxeye Daisy, White Daisy, Common Daisy, Marguerite
- Ozark Bedstraw
- Ozark Bunchflower, Wood's False-hellebore
- Ozark Grass
- Ozark Tassel-rue
P
211 plants
- Pachysandra, Japanese-spurge
- Painted Buckeye
- Painted Leaf, Fire-on-the-mountain
- Painted Leaf, Wild Poinsettia, Toothed Spurge
- Painted Trillium, Striped Wake-robin
- Pale Beaksedge
- Pale Dock, Tall Dock, Peachleaf Dock
- Pale Duckweed
- Pale Grass-pink
- Pale Indian-plantain
- Pale Mannagrass
- Pale Spiked Lobelia
- Pale Vetch, Wood Vetch, Carolina Vetch
- Pale Yellow Trillium, Pale Trillium, Small Yellow Toadshade
- Pampasgrass
- Panicledleaf Ticktrefoil, Panicled Ticktrefoil
- Panicledleaf Ticktrefoil, Panicled Ticktrefoil
- Pansy, Johnny-jump-up
- Paper Mulberry
- Papillose Nutrush
- Para-grass
- Parachute Sedge
- Paraguay Bur, Sheep Bur
- Paraguayan Windmill-grass
- Parasol Sedge
- Parrot-feather
- Parsley Hawthorn, Parsley Haw
- Parsley-piert
- Parsnip
- Partridge-berry
- Pasture Thistle
- Path Rush, Slender Rush, Poverty Rush
- Peach
- Peacock Sprangletop
- Peanut
- Pear Hawthorn
- Pearl Millet
- Pearlbush
- Pearly-everlasting
- Peat-loving Goldenrod
- Pecan
- Peelbark St. John's-wort
- Pellitory-of-the-wall
- Pencil-flower
- Pennsylvania Blackberry, Eastern Blackberry
- Pennsylvania Everlasting
- Pennsylvania Pellitory, Rock Pellitory
- Pennywort
- Peppermint
- Peppervine
- Perennial Dune Whitlow- wort
- Perennial Greenhead Sedge
- Perennial Pea
- Perennial Ragweed
- Perennial Salt-marsh Aster
- Perennial Sand Bean
- Perennial Sea-pink, Large Marsh Rose-pink
- Perfoliate Bellwort
- Perfoliate Horse-gentian
- Perilla, Beefsteak-plant, Shiso
- Perplexing Tick-trefoil
- Persian Clover, Reversed Clover
- Persistent Trillium
- Peruvian-lily, Parrot-lily
- Philadelphia-daisy
- Pickering's Dawnflower
- Piedmont Aster
- Piedmont Azalea, Southern Pinxter Azalea, Wild Azalea
- Piedmont Barbara's-buttons, Spoon-leaved Barbara's- buttons
- Piedmont Bedstraw, Piedmont Crosswort
- Piedmont Buckroot
- Piedmont Indigo-bush
- Piedmont Primrose-willow
- Piedmont Quillwort
- Pignut Hickory
- Pillpod Sandmat
- Pinckneya, Fever-tree
- Pine Lily, Catesby's Lily, Leopard Lily
- Pine-barren Aster
- Pinebarren Gentian
- Pinebarren Sandreed
- Pinebarren Sedge
- Pinebarren Sunrose
- Pinebarrens Peanut-grass
- Pineland Agrimony
- Pineland Beaksedge
- Pineland Flatsedge
- Pineland Milkweed
- Pineland Phlox
- Pineland Pinweed
- Pineland Plantain
- Pineland Skeleton Grass, Pineland Beard Grass
- Pineland St. John's-wort
- Pineland Tick-trefoil, Pinebarren Tick-trefoil
- Pineland Triodia, Flatwoods Fluffgrass
- Pineland Wild-petunia
- Pineland Yellow-eyed Grass
- Pinesap
- Pineweed, Orange-grass
- Pinewoods Rose-gentian
- Pineywoods Goldenrod
- Pink Lady's-slipper, Moccasin-flower
- Pink Laurel, Catawba Rhododendron, Mountain Rosebay
- Pink Redstem
- Pink Sundew
- Pink Thoroughwort, Pink Eupatorium
- Pink Tickseed, Rose Coreopsis
- Pink Woodsorrel
- Pinkroot, Wormgrass
- Pinkweed, Common Smartweed, Pennsylvania Smartweed
- Pinpoint Clover
- Pipevine, Dutchman's-pipe
- Pipsissewa, Striped Wintergreen
- Pitch Pine
- Pitchfork Paspalum, Pitchfork Crown Grass
- Pitted Nutrush
- Plains Lovegrass
- Plains Sunflower
- Planer-tree, Water-elm
- Plantain Pussytoes
- Plantainleaf Sedge, Seersucker Sedge
- Plume-poppy, Tree-celandine
- Plumed Beaksedge
- Plumeless Thistle
- Plymouth Gentian
- Pocosin Bayberry, Evergreen Bayberry
- Pocosin Flat-topped Aster
- Pocosin Loosestrife, "Roughleaf Loosestrife"
- Pocosin Pine, Pond Pine, Marsh Pine
- Poet's Narcissus, Pheasant's-eye Daffodil
- Poison Oak
- Poison Sumac, Thunderwood
- Poison-hemlock
- Polypremum, Rustweed, Juniperleaf
- Pond Lovegrass
- Pond-cypress
- Pondshore Croton, Elliott's Croton
- Pondspice
- Pool Coreopsis
- Pool-sprite, Snorkelwort
- Poor Man's Pepper
- Poorjoe
- Poorland Flatsedge
- Porcelain-berry, Amur Peppervine
- Porter's Reedgrass
- Portuguese Daisy
- Possum Grape
- Possum-haw
- Post Oak
- Poverty Dropseed
- Poverty Oat-grass, Moonshine Grass
- Powdery Thalia, Powdery Alligator-flag
- Prairie Anemone, Carolina Anemone
- Prairie Broomweed, Broom Snakeroot
- Prairie Burnet
- Prairie buttercup
- Prairie Cupgrass
- Prairie False Oats
- Prairie Larkspur, Carolina Larkspur, Blue Larkspur
- Prairie Pepperweed, Green-flowered Peppergrass
- Prairie Three-awn
- Prairie Wedgegrass
- Prairie-dock
- Prairie-tea, One-seed Croton
- Pregnant Sedge, Heavy Sedge
- Pretty Honeysuckle
- Prickly Bog Sedge
- Prickly Lettuce
- Prickly Sida, Prickly-mallow, False-mallow
- Prickly Spiderflower
- Prickly-pear
- Prickly-pear
- Primrose-leaf Violet
- Primrose-peerless, Twin-sisters; Two-flower Narcissus
- Prince's-pine
- Princess Tree, Empress Tree, Paulownia
- Prostrate Sandmat
- Prostrate Vervain, Big-bracted Vervain
- Prune-fruited Sedge
- Puck's Orpine
- Puerto Rican Witchgrass
- Pumpkin Ash
- Pumpkin, Zucchini, Ornamental Gourd, Vegetable Marrow
- Puncture-weed, Caltrop, Devil's-thorn
- Puritan Panic Grass
- Purple Bedstraw, Wideleaf Bedstraw
- Purple Bladderwort
- Purple Chokeberry
- Purple Cliff-brake
- Purple False Foxglove
- Purple Fringeless Orchid, Purple Spire Orchid, Pride-of-the-peak
- Purple Lovegrass, Tumblegrass
- Purple Meadowparsnip
- Purple Meadowparsnip
- Purple Nutsedge, Nutgrass, Cocograss
- Purple Sandgrass
- Purple Savanna Milkweed, “Red Milkweed”
- Purple Silkyscale
- Purple Spikerush
- Purple Turtlehead
- Purple-node Joe-pye-weed
- Purple-stem Aster, Swamp Aster
- Purplestem Beggar-ticks
- Purpletop Vervain
- Purpletop Vervain
- Pursh's Wild-petunia
- Puttyroot, Adam-and-Eve
- Pygmy Hawthorn
- Pygmy Spiderlily, Waccamaw Spiderlily
- Pygmyweed
- Pyramid Magnolia
Q
7 plants
R
138 plants
- Rabbitfoot Clover
- Rabbitfoot Grass, Beardgrass, Annual Beardgrass
- Raccoon-grape, False-grape
- Radford's Sedge
- Radish, Garden Radish
- Rafinesque's Seedbox
- Ragged Eupatorium
- Rat-tail Fescue
- Rattlebox, Poison-bean
- Rattlebox, Scarlet Wisteria-tree, Red Sesban
- Rattlesnake Fern, Sang-find
- Rattlesnake-master, Eastern False-aloe
- Rattleweed
- Raven's Seedbox
- Ravenel's Eryngo
- Ravenel's Pipewort
- Ravenel's Witchgrass
- Ravenel’s Hawthorn
- Ravenna-grass, Plume-grass
- Ravine Sedge, Impressed-nerve Sedge
- Rayless-goldenrod
- Rayner's Blueberry
- Recurved Eupatorium
- Red Amaranth, Blood Amaranth, Purple Amaranth
- Red Based Blue-eyed-grass
- Red Bay
- Red Buckeye
- Red Canada Lily
- Red Chokeberry
- Red Clover
- Red Dead-nettle, Purple Dead-nettle
- Red Fescue
- Red Hickory
- Red Lovegrass
- Red Mangrove
- Red Margin Bamboo
- Red Mulberry
- Red Oak
- Red Spiderling, Spreading Hogweed
- Red Sprangletop
- Red spruce, He Balsam
- Red Three-awn
- Red-seeded Dandelion
- Redpod Rush
- Redroot
- Redroot Flatsedge
- Redtop Panic Grass
- Redtop, Black Bentgrass
- Redtop, Tall Redtop, Purpletop Tridens, Greasy Grass
- Reeves' meadowsweet
- Reflexed Flatsedge
- Reflexed Sedge
- Relict Trillium
- Rescue Grass
- Resinous Boneset, Pinebarren Eupatorium
- Resinous Sunflower
- Resurrection Fern, Scaly Polypody
- Reznicek’s Sedge
- Rhode Island Bentgrass, Colonial Bentgrass, Browntop
- Rhodes Grass
- Rhombic Copperleaf
- Ribbed Sedge
- Ribbonleaf Pondweed
- Rice
- Rice Cutgrass
- Rice-field Flatsedge
- Ricepaper-plant
- Richard’s Yellow-eyed-grass
- Richweed, Northern Horsebalm
- Ridgestem Yellow Flax
- Rigid Whitetop Aster
- Ringed Witchgrass
- Ripgut Brome, Ripgut Grass
- River Birch, Red Birch
- River Oats, Fish-on-a-pole
- Riverbank Evening-primrose
- Roan Mountain Goldenrod
- Roanoke Witchgrass
- Robbins’s Spikerush
- Robin's-plantain
- Rock Chestnut Oak
- Rock Clubmoss
- Rock Harlequin, Tall Corydalis, Pink Corydalis, Pale Corydalis
- Rock Muhly
- Rock Spikemoss
- Rocket Larkspur
- Rockweed, Artillery Weed
- Rome Hawthorn
- Rose Glory-bower, Kashmir-bouquet
- Rose Natalgrass
- Rose Pogonia, Snakemouth, Beardflower, Ettercap, Addermouth
- Rose Vervain, Rose Verbena, Creeping Vervain
- Rose-moss
- Rose-of-Sharon, Althaea
- Rosemary
- Rosemary Sunrose
- Rosemary, Florida Rosemary, Sandhill Rosemary, Sand Heath
- Rosy Sedge
- Rosy-periwinkle, Madagascar Periwinkle, Cayenne Jasmine
- Rough Avens
- Rough Barnyard-grass
- Rough Barnyard-grass
- Rough Blazing-star
- Rough Dogtail, Bristly Dogtail
- Rough Dropseed
- Rough Flatsedge
- Rough Goldenrod
- Rough Hawkweed
- Rough Hawthorn
- Rough Mexican Clover
- Rough Pennyroyal, Mock Pennyroyal
- Rough Vervain, Harsh Vervain
- Rough-hairy Witchgrass
- Rough-leaved Hedge-nettle
- Rough-pod Copperleaf
- Roughish Witchgrass
- Roughleaf Eupatorium
- Roughleaf Sunflower
- Roughleaf Yellow-eyed Grass
- Round-fruited Witchgrass
- Round-leaf Yellow Violet, Early Yellow Violet
- Round-lobed Hepatica, Round-lobed Liverleaf
- Roundleaf Ragwort, Running Ragwort
- Roundleaf Sundew
- Roundleaf Sunflower, Rayless Sunflower
- Roundleaf Tick-trefoil
- Roundpod St. John's Wort
- Rue-anemone, Windflower
- Rufous Bulrush
- Running Clubmoss
- Running Five-fingers
- Running Oak
- Running Strawberry-bush
- Rush-featherling
- Russian Rocket
- Rutabaga, Rape, Canola, Colza, Swede
- Ruth's Sedge
- Rye
S
700 plants
- Sacred-lotus, Oriental Lotus-lily, Pink Lotus
- Sago-pondweed
- Salad Violet
- Sallow Sedge
- Salmon Tasselflower, Cupid's-shaving-brush
- Salsify, Vegetable-oyster, Purple Goat’s-beard
- Salt-marsh Water-hemp
- Saltgrass, Spike Grass
- Saltmarsh Bulrush
- Saltmarsh Cordgrass, Smooth Cordgrass
- Saltmarsh False Foxglove
- Saltmarsh Finger-grass
- Saltmarsh Fleabane
- Saltmarsh Foxtail-grass, Giant Foxtail-grass
- Saltmarsh Morning-glory
- Saltmarsh Sand-spurrey
- Saltwort, Beachwort, Batis, Turtleweed, Vidrillos
- Samphire
- Sand Barren Hawthorn
- Sand Bittercress
- Sand Blackberry
- Sand Cordgrass
- Sand Dayflower
- Sand Dropseed
- Sand Evening-primrose
- Sand Hickory, Pale Hickory
- Sand Knotgrass, Seashore Crown Grass
- Sand Laurel Oak, Darlington Oak
- Sand Live Oak
- Sand Pine
- Sand Poppy-mallow, Clustered Poppy-mallow
- Sand Rushfoil, Michaux's Croton, Narrowleaf Rushfoil
- Sand Spikerush
- Sand Wormwood, Beach Wormwood
- Sand-myrtle
- Sandhill Beaksedge
- Sandhill Blazing-star
- Sandhill Chaffhead
- Sandhill Goldenaster
- Sandhill Hawthorn
- Sandhill Heartleaf
- Sandhill Pinweed
- Sandhill Spiderwort
- Sandhill St. John's-wort
- Sandhill Thistle
- Sandhill Wild-buckwheat, Southern Wild-buckwheat, Dog-tongue
- Sandhills Bean
- Sandhills Blazing-star
- Sandhills Bluestar
- Sandhills Bog Lily
- Sandhills Dropseed
- Sandhills Gaillardia
- Sandhills Ground-cherry
- Sandhills Milkvetch, Michaux's Milkvetch
- Sandhills Milkweed
- Sandhills Pyxie-moss, Wells's Pyxie-moss, Little Pyxie
- Sandhills Wild-petunia
- Sandplain Agalinis
- Sandvine, Honeyvine, Bluevine
- Sandy pinelands
- Sandy Woods Witchgrass
- Sandyfield hairsedge
- Santa Maria, Feverfew, Gajarghass, Congress grass
- Sardinian Buttercup, Hairy Buttercup
- Sarsaparilla-vine, Dwarf Smilax
- Sarvis Holly
- Sasanqua Camellia
- Sassafras
- Satin Brome, Nottoway River Brome, Virginia Brome
- Savanna Beaksedge
- Savanna Bluehearts, Florida Bluehearts
- Savanna Coreopsis
- Savanna Cowbane
- Savanna Eryngo
- Savanna Eupatorium, Justiceweed
- Savanna Hairgrass
- Savanna Hairsedge
- Savanna Hibiscus, Comfort-root
- Savanna Honeycomb-head, Yellow Balduina
- Savanna Indian-plantain
- Savanna Indigo-bush
- Savanna Mountain-mint
- Savanna Nutrush
- Savanna Obedient-plant
- Savanna Seedbox
- Savanna Stargrass
- Savanna Sunflower
- Savanna Yellow-eyed Grass
- Savannah Grass-leaved Aster
- Savannah Iris
- Savannah Sneezeweed
- Saw Palmetto
- Sawgrass
- Sawtooth Oak
- Scale-leaf Agalinis
- Scaly Gayfeather
- Scarlet Creeper, Red Morning-glory
- Scarlet Firethorn
- Scarlet Hibiscus
- Scarlet Milkweed
- Scarlet oak
- Scarlet Sage, Blood Sage
- Schweinitz's Sunflower
- Sclerolepis
- Scotch Broom, Besom, Ginster
- Scratch-daisy
- Screwstem Bartonia
- Scribner's Witchgrass
- Scurf-pea
- Sea Oats
- Sea-island Cotton, Egyptian Cotton, Pima Cotton, Extra-long-staple Cotton
- Seabeach Amaranth, Dwarf Amaranth
- Seabeach Evening-primrose, Spreading Evening-primrose
- Seabeach Knotweed
- Seabeach Needlegrass
- Seabeach Orach
- Seabeach Orach
- Seashore Dropseed, Coastal Dropseed
- Seashore-mallow, Saltmarsh-mallow, Fen-rose
- Seaside Heliotrope
- Seaside Oxeye
- Sebastian-bush
- Secund Rush, Lop-sided Rush
- Seep Rush
- Senna Seymeria
- Sensitive Fern, Bead Fern
- Sericea Lespedeza, Chinese Lespedeza
- Serrated Tussockgrass
- Sesame
- Sesban, Coffee-weed, Indigo-weed, Peatree
- Sessile Joyweed
- Sessile-leaf Tick-trefoil
- Shade Mudflower
- Shadow Witch
- Shaggy Blazing Star
- Shaggy Blazing-star
- Shaggy Crabgrass
- Shaggy Hedge-hyssop
- Shale-barren Sunflower, Smooth Sunflower
- Sharp-fruited Rush
- Sharp-leaved Fluellen, Male Fluellen
- Sharp-lobed Hepatica, Sharp-lobed Liverleaf
- Sharp-scaled Sedge
- Sharpscale Bulrush
- Sharpscale Flatsedge
- Shaved Sedge
- Sheathed Flatsedge
- Shepherd's Cress, Hedge Mustard, Bank Cress
- Shining Fetterbush
- Shining Firmoss, Shining Clubmoss
- Shining Nutrush
- Shining Witchgrass
- Shiny Spanglegrass
- Shiny Wedgescale
- Shoal-grass
- Shoals Spiderlily, Cahaba Lily
- Shoestring Fern
- Shoreline Sedge
- Short-beaked Beaksedge
- Short-bearded Plume Grass
- Short-bristle Beaksedge
- Short-bristled Horned Beaksedge
- Short-bristled Umbrella-sedge
- Short-fringed Sedge
- Short-fruited Draba
- Short-fruited Rush
- Short-leaved Witchgrass
- Short-lipped Ladies’-tresses
- Short-spurred Corydalis, Yellow Fumewort, Yellow Harlequin
- Short's Spreading Chervil
- Shortleaf Gayfeather
- Shortleaf Pine, Rosemary Pine, Yellow Pine
- Shortleaf Rosegentian
- Shortleaf Sneezeweed
- Shortleaf Yellow-eyed Grass
- Shortspike Bluestem
- Shortspike Windmill Grass
- Shortspur Creeping Bladderwort
- Shortstalk Chickweed
- Shortstalk Copperleaf
- Showy Bur-marigold
- Showy Chloris
- Showy Goldenrod
- Showy Goldenrod
- Showy Milkwort
- Showy Orchis
- Showy Rattlebox
- Showy Skullcap, Serrate Skullcap
- Showy Sunflower
- Showy Water-primrose
- Shrubby buttonweed
- Shrubby Seedbox
- Shrubby St-John's-wort
- Shumard Oak
- Shyleaf
- Siberian Elm, Dwarf Elm
- Sickle Grass, Hard Grass, Thin-tail
- Sicklepod, Canada Rockcress
- Sicklepod, Coffeeweed
- Silkgrass
- Silky Bindweed, Blue Ridge Bindweed
- Silky Camellia, Virginia Stewartia
- Silky Dogwood
- Silky Oat-grass
- Silky Willow
- Silver Bluestem
- Silver Hair Grass
- Silver Maple, Soft Maple
- Silver Plume Grass
- Silver Poplar, White Poplar
- Silver-dollar Eucalyptus, Silver-dollar Tree, Argyle-apple, Mealy Stringybark
- Silver-lace-vine, China Fleece-vine
- Silverleaf Croton, Beach-tea, Gulf Croton
- Silverleaf Grape
- Silverleaf Nightshade, White Horse-nettle
- Silverling
- Silverling, High-tide Bush, Mullet Bush, Groundsel Tree
- Silverrod, White Goldenrod
- Silvery Lespedeza
- Silvery Spleenwort
- Simmonds’s Aster
- Simpler East Indian Holly Fern
- Single Flower Sandwort; Piedmont Sandwort; One Flower Stitchwort
- Single-sorus Spleenwort
- Sister Hawthorn
- Sixweeks Three-awn
- Skunk Meadowrue, Waxy Meadowrue
- Skunk-daisy
- Skunk-vine
- Skyflower
- Sleepy Catchfly, Garter-pink
- Slender Adder's-tongue
- Slender Amaranth, Tropical Green Amaranth
- Slender Aster
- Slender Beaksedge
- Slender Bladderwort, Zigzag Bladderwort
- Slender Blazing-star
- Slender Blue Iris, Slender Blue Flag
- Slender corydalis
- Slender Cottonweed
- Slender Crabgrass
- Slender False Foxglove
- Slender Fimbry
- Slender Flatsedge, Shining Flatsedge
- Slender Flattop Goldenrod
- Slender foxtail grass
- Slender Hairgrass
- Slender Indiangrass
- Slender Leather-root
- Slender Loose-flowered Sedge
- Slender Marsh-pink
- Slender Mountain-mint
- Slender Muhly
- Slender Naiad, Bushy Naiad
- Slender Nutrush
- Slender Rattlesnake-root
- Slender Sedge
- Slender Spikegrass
- Slender Spikerush, Kill-cow
- Slender Vetch, Smooth Tare, Lentil Vetch
- Slender Wedgegrass
- Slender Wheatgrass
- Slender Wild Basil
- Slender Woodland Sedge
- Slender-Fruit Beaksedge
- Slender-stemmed Witchgrass
- Slenderleaf False Foxglove
- Slenderleaf Rattlebox
- Slimleaf Pawpaw
- Slimleaf Tick-trefoil
- Slippery Elm, Red Elm
- Small Beaked Panic Grass
- Small Bedstraw
- Small Bunched Beaksedge
- Small Butterwort
- Small Coastal Plain Spreading Pogonia
- Small Green Wood Orchid
- Small Jack-in-the-pulpit
- Small Matweed
- Small Melilot, Sourclover
- Small Pondweed
- Small Pondweed
- Small Purple Fringed Orchid, Butterfly Orchid
- Small Rabbit Tobacco
- Small Saltmeadow Cordgrass, Salt Hay, Marsh-hay Cordgrass
- Small Sea-purslane, Slender Sea-purslane
- Small Solomon's-seal
- Small Spikerush
- Small Thyme-leaved Sandwort, Slender Sandwort
- Small Venus' Looking-glass
- Small waterclover
- Small White Aster
- Small White Fringed Orchid
- Small Whorled Pogonia, Little Five-leaves
- Small-flowered Buckthorn
- Small-flowered Buttercup, Stickseed Crowfoo
- Small-flowered Catchfly
- Small-flowered Crane's-bill
- Small-flowered Gaura, Velvety Gaura
- Small-flowered Pawpaw, Small-fruited Pawpaw
- Small-flowered Sand Bean, Slickseed Fuzzy Bean
- Small-flowered Seedbox
- Small-fruited Seedbox
- Small-fruited Sundrops
- Small-fruited Witchgrass
- Small-head Blazing-star
- Small-headed Beaksedge
- Small-headed Marsh-elder
- Small-headed Sunflower
- Small-leaf Pygmyweed
- Small-leaf Viburnum, Walter's Viburnum
- Small-leaved Meadowrue
- Small-leaved Miterwort
- Small-leaved White Snakeroot, Wild-hoarhound
- Small-leaved Witchgrass
- Small's Beakrush
- Small's Portulaca
- Small's Skullcap
- Small's Yellow-eyed Grass
- Small’s Hackberry
- Small’s White Ash
- Smallflower Baby Blue Eyes
- Smallflower Halfchaff
- Smallflower Hawksbeard
- Smallflower Thoroughwort
- Smallfruit Spikerush
- Smooth Amaranth, Green Amaranth, Hybrid Amaranth, Smooth Pigweed
- Smooth Arrow-wood
- Smooth Blackberry, Thornless Blackberry
- Smooth Blue Aster
- Smooth Brome
- Smooth Brome, Hungarian Brome, Awnless Brome
- Smooth Bumelia, Florida Bully
- Smooth Bur-clover, Toothed Medick
- Smooth Buttonweed
- Smooth Cat's-ear
- Smooth Crab Grass
- Smooth Distaff-thistle
- Smooth Goldenrod
- Smooth Ground-cherry
- Smooth Heart-leaved Aster
- Smooth Hedge-nettle
- Smooth Highbush Blueberry
- Smooth Hydrangea, Sevenbark
- Smooth Joyweed
- Smooth Loosestrife, Four-flowered Loosestrife
- Smooth Meadow-beauty
- Smooth Mountain-mint
- Smooth Oak-leech
- Smooth Oxeye, Pineywoods Oxeye, Coastal Plain Sunflower-everlasting, Coastal Plain Oxeye
- Smooth Phlox
- Smooth Purple Coneflower
- Smooth Rattlebox
- Smooth Rose-mallow, Halberd-leaved Marsh-mallow, Showy Hibiscus
- Smooth Serviceberry
- Smooth Southern Bush-honeysuckle
- Smooth Spiderwort
- Smooth Sumac
- Smooth Tick-trefoil
- Smooth Trailing Lespedeza
- Smooth Winterberry
- Smooth Wirestem Muhly
- Smooth Yellow Forest Violet
- Smooth-leaved Witchgrass
- Smooth-sheathed Sedge
- Smoothseed Milkweed, Swampforest Milkweed
- Smut Grass, Blackseed
- Snow Squarestem
- Snow-on-the-mountain
- Snowdrop
- Snowy Hydrangea, Silverleaf
- Snowy Orchid, Bog-spike
- Soapwort Gentian
- Soapwort, Bouncing Bet
- Soda Apple
- Soft Chess, Lopgrass
- Soft Goldenaster
- Soft Milkpea
- Softstem Bulrush, Great Bulrush
- Somewhat-tailed Rush
- Sorghum, Milo, Broomcorn, Sorgo
- Sour Gum, Black Gum, Pepperidge
- Sourwood, Sorrel-tree
- South African Lovegrass
- South American Horseweed
- South American Skullcap
- South American Water-hyssop
- South Carolina Sedge
- South Carolina Wild-pink, Rock Catchfly
- Southeastern Bold Goldenrod
- Southeastern Flatsedge
- Southeastern Gaura
- Southeastern Noseburn, Wavyleaf Noseburn
- Southeastern Panic Grass
- Southeastern Sea Rocket
- Southeastern Slim-spike Three-awn
- Southeastern Sneezeweed
- Southeastern Tansy-mustard
- Southeastern Wild-rye
- Southern Adder's-tongue
- Southern Agrimony
- Southern Arrowfeather
- Southern Arrowgrass
- Southern Barren Strawberry
- Southern Basswood, Carolina Basswood
- Southern Beaksedge
- Southern Beardtongue, Sandhill Beardtongue
- Southern Black Haw
- Southern Bladderwort
- Southern Blue Flag
- Southern Blue Flag
- Southern Blueberry, Small Cluster Blueberry
- Southern Bog Clubmoss
- Southern Bog Goldenrod
- Southern Bog Goldenrod, Graceful Goldenrod
- Southern Bogbutton
- Southern Bracken
- Southern Carpetgrass
- Southern Catalpa
- Southern Cattail
- Southern Chervil
- Southern Crab Grass
- Southern Crownbeard
- Southern Cutgrass
- Southern Dark Green Sedge
- Southern Dawnflower
- Southern Deerberry
- Southern Dewberry, Coastal Plain Dewberry
- Southern Doll's-daisy
- Southern Dwarf St. John's-wort
- Southern Elephant's-foot
- Southern Evergreen Blueberry
- Southern Frank’s Sedge
- Southern Frostweed
- Southern Germander
- Southern Grapefern
- Southern Harebell, Appalachian Bellflower
- Southern Highbush Blueberry, Swamp Highbush Blueberry
- Southern Horseweed
- Southern Jack-in-the-pulpit, Preacher John
- Southern Joint-vetch
- Southern Jointweed
- Southern Lady Fern
- Southern Lobelia
- Southern Long Sedge
- Southern Loosestrife, Appalachian Loosestrife
- Southern Magnolia, Bull Bay
- Southern Maleberry, He-huckleberry
- Southern Maritime Marsh-elder
- Southern Marsh St. John's-wort
- Southern Marsh Yellowcress
- Southern New Jersey Tea
- Southern Nodding Trillium
- Southern Oak-leech
- Southern Obedient-plant
- Southern Pepperwort
- Southern Purple Pitcherplant
- Southern Rattlesnake-master
- Southern Red Cedar, Coastal Red Cedar
- Southern Rein Orchid, Southern Gypsy-spike
- Southern Rockbell
- Southern Roughleaf Goldenrod
- Southern Saltwort
- Southern Sandgrass
- Southern Sandspur, Bristly Sandspur, Hedgehog Grass
- Southern Sanicle, Small's Sanicle
- Southern Sea-blite
- Southern Seabeach Grass
- Southern Seaside Goldenrod
- Southern Seaside Spurge, Dixie Sandmat
- Southern Sedge
- Southern Sensitive-plant
- Southern Sheepkill, Carolina Wicky, Carolina Bog Myrtle
- Southern Shortia, Oconee Bells
- Southern Single-head Pussytoes
- Southern Six-weeks Fescue
- Southern Skullcap
- Southern Slender Ladies'-tresses
- Southern Slender Woodland Sedge
- Southern Sneezweed
- Southern Spermolepis, Roughfruit Spermolepis
- Southern Spicebush, Pondberry
- Southern Stoneseed
- Southern Sugar Maple, Florida Maple
- Southern Sundrops
- Southern Sundrops
- Southern Swamp Aster, Elliott's Aster
- Southern Sweet Bay
- Southern Tall Goldenrod
- Southern Three-awn, Chapman's Three-awn
- Southern Three-lobed Bedstraw
- Southern Toothache Tree, Hercules'-club, Sea-ash, Southern Prickly-ash, Pepper- bark, Tickle-tongue
- Southern Twayblade
- Southern Water Grass
- Southern Water-hemlock
- Southern Water-milfoil
- Southern Water-plantain
- Southern Water-purslane
- Southern White Beaksedge
- Southern White Colic-root
- Southern White-tinged Sedge, Bellow's-beak Sedge
- Southern Wild Raisin, Possumhaw
- Southern Wild-rice
- Southern Wild-rice, Giant Cutgrass, Water-millet
- Southern Willdenow's Sedge
- Southern Winged Loosestrife
- Southern Wiregrass
- Southern Wood-fern
- Southern Woolly Violet
- Southern Yellow Thistle
- Southern Yellow Wood-sorrel
- Southern-privet
- Soybean
- Soybean goosefoot
- Spanish Dagger
- Spanish Needles
- Spanish Needles, Beggarticks, Romerillo
- Spanish Oak, Southern Red Oak
- Spanish-moss
- Speargrass, Six-weeks Grass, Annual Bluegrass
- Spearleaf Violet, Silverleaf Violet, Halberd-leaf Violet, Halberd-leaved Yellow Violet
- Spearmint
- Spearmint
- Speckled Wood-lily
- Spider Brake
- Spider-plant, Airplane plant
- Spiderwisp, Cat’s-whiskers
- Spike pappusgrass
- Spike Triodia, Longspike Fluffgrass, Longspike Tridens
- Spiked Burgrass
- Spiked Hoarypea
- Spiked Medusa, Smooth-lipped Eulophia
- Spikenard, Hungry-root
- Spindle-fruited Witchgrass
- Spineless Hornwort
- Spinulose Wood-fern, Toothed Wood-fern
- Spiny Amaranth
- Spiny Cocklebur
- Spiny Spikemoss, Sand Spikemoss
- Spinyfruit Buttercup
- Spinyleaf Naiad
- Spinyleaf Sow-thistle, Prickly Sow-thistle
- Splitbeard Bluestem
- Spoonflower, White Arrow-arum
- Spoonleaf Purple Everlasting
- Spotted Cat's-ear
- Spotted Knapweed, Bushy Knapweed
- Spotted Medick, Spotted Bur-clover
- Spotted Pondweed, Heartleaf Pondweed
- Spotted St. John's-wort
- Spotted-sheath Witchgrass
- Sprawling Witchgrass
- Spreading Amaranth
- Spreading Bulrush
- Spreading Bur-parsley, Field Hedge-parsley
- Spreading chinchweed
- Spreading Dogbane
- Spreading Panic Grass, Fall Panic Grass
- Spreading Sandwort
- Spreading Sedge
- Spreading Sprangletop
- Spreading Sunflower
- Spreading Wood-rush
- Sprenger's Asparagus-fern, Emerald-fern
- Spring Avens
- Spring Bartonia, White Bartonia
- Spring Coralroot
- Spring Ladies'-tresses
- Spring Vetch
- Spring-flowering Goldenrod
- Spruce Pine, Walter's Pine
- Spurge-nettle, Tread-softly, Finger-rot, Bull-nettle
- Spurred Anoda
- Spurred Butterfly Pea
- Squarehead, Pineland-ginseng
- Squarestem Spikerush
- Squawroot, Bearcorn
- Squirrel Corn
- Squirrel-tail Fescue
- St. Andrew's Cross
- St. Andrew's Cross, St. Peter's-wort
- St. Augustine Grass, Carpet Grass
- Staggerbush
- Staggerbush, Poor-grub
- Staghorn Sumac
- Stalk-grain Sedge, Awl-fruit Sedge
- Stalked Bugleweed
- Stalked Milkweed, Savanna Milkweed
- Stalkless Marshcress
- Standing-cypress
- Star Chickweed, Common Starwort, Giant Chickweed, Great Chickweed
- Star-of-Bethlehem, Snowflake, Nap-at-noon
- Star-of-Bethlehem, Spring Star
- Star-vine, Climbing-magnolia, Magnolia-vine
- Starburst Flatsedge, Plukenet’s Flatsedge
- Stargrass, Black Windmill-grass
- Starry Campion, Widow's-frill
- Starved Aster
- Starved Witchgrass
- Stemless Ironweed
- Sticky Mouse-ear
- Sticky Nightshade
- Stiff Tick-trefoil
- Stiff-leaved Aster
- Stinkgrass
- Stinking Fleabane
- Stokesia, Stokes Aster, Blue Stokesia
- Stone Mountain Beakrush; Stone Mountain Beaksedge
- Stone-mint, American-dittany, Wild-oregano
- Stoneroot
- Straggler-daisy, Lawnflower
- Strap-leaved Violet
- Straw-lily, Wild-oats
- Strawberry-bush, Heart's-a-bustin'-(with-love)
- Strawberry-weed, Rough Cinquefoil
- Strawstem Beggar-ticks
- Streambed Sedge, Twisted Sedge
- Strict St. John’s-wort
- Stringy Stonecrop
- Striped Gentian
- Striped Maple
- Subterranean Clover
- Sugar Maple, Hard Maple, Sugar Tree
- Sugarcane Plume Grass, Giant Plume Grass
- Sulphur Five-fingers, Sulphur Cinquefoil
- Summer Bluet
- Summer Farewell, Eastern Prairie-clover
- Summer Grape
- Summer Sedge
- Summer Snowflake
- Summer Spurge
- Summer-cypress, Kochia, Mexican Fireweed
- Summer-lilac, Orange-eye Butterfly-bush
- Sumpweed, Rough Marsh-elder
- Sunbonnets, Pineland Daisy, Night-nodding Bog-dandelion, Woolly Sunbonnets
- Sunfacing Coneflower, Pineywoods Coneflower
- Sunny Hawthorn
- Supplejack, American Rattan, Alabama Supplejack, Carolina Supplejack
- Swallow-wort
- Swamp Azalea, Clammy Azalea
- Swamp Azalea, Clammy Azalea
- Swamp Barnyard-grass
- Swamp Bay
- Swamp Blueberry, Rabbiteye Blueberry
- Swamp Bulrush, Canby's Bulrush
- Swamp Coreopsis
- Swamp Cottonwood
- Swamp Dewberry
- Swamp Dock
- Swamp Fern, Marsh Fern
- Swamp Flatsedge
- Swamp Jessamine
- Swamp Justiceweed
- Swamp Phanopyrum, Savanna Phanopyrum
- Swamp Pink
- Swamp Post Oak, Delta Oak
- Swamp Rose
- Swamp rush
- Swamp Smartweed
- Swamp Star-anise, Yellow Anise-tree, Ocala Anise-tree
- Swamp Stargrass, Curtiss’s Stargrass
- Swamp Thistle
- Swamp Tupelo, Water Gum, Swamp Black Gum
- Swamp Twinflower, Swamp Dyschoriste
- Swamp Water-pennywort
- Swamp White Oak
- Swamp-forest Beaksedge
- Swamp-lily, String-lily, Seven-sisters
- Swamp-oats
- Swamp-privet
- Swan’s Sedge
- Swaying Rush, Water Bulrush
- Sweet Alyssum
- Sweet Annie, Sweet Wormwood, Annual Mugwort
- Sweet Autumn Clematis, Yam-leaved Clematis
- Sweet Azalea, Smooth Azalea
- Sweet Betsy, Purple Toadshade, Large Toadshade, Wedge-petal Trillium, Bloody Butcher
- Sweet Birch, Cherry Birch, Black Birch, "Mahogany"
- Sweet Cherry, Mazzard Cherry, Bing Cherry
- Sweet Gum, Red Gum
- Sweet Pitcherplant, Redflower Pitcherplant
- Sweet Potato
- Sweet Tanglehead
- Sweet Trillium, Vasey’s Trillium, Sweet Beth
- Sweet Vernal Grass
- Sweet White Trillium
- Sweet White Violet
- Sweet William
- Sweet William Catchfly, None-so-pretty, Garden Catchfly
- Sweet-breath-of-spring
- Sweet-fern
- Sweet-scented Bedstraw
- Sweet-shrub, Strawberry-shrub, Carolina Allspice, Sweet Bubby-bush
- Sweetleaf, Horsesugar
- Switch Cane, Small Cane
- Switchgrass
- Swollen Bladderwort, Inflated Bladderwort
- Swollen Meadow-beauty
- Swollen Windmill-grass
- Sycamore, Plane-tree
T
154 plants
- Table Mountain Pine, Bur Pine, Hickory Pine
- Tag Alder, Smooth Alder, Hazel Alder
- Taiwanese Redtip
- Tall Anemone, Thimbleweed
- Tall Beggar-ticks
- Tall Bellflower
- Tall Blue Lettuce
- Tall Blue Wild Indigo, Streamside Blue Indigo
- Tall Buttercup, Bitter Buttercup
- Tall Coreopsis
- Tall Dropseed
- Tall Fescue, Alta Fescue
- Tall Flat Panic Grass
- Tall Flat-topped White Aster
- Tall Flatsedge
- Tall Goldenrod
- Tall Horned Beaksedge
- Tall Indigo-bush
- Tall Ironweed
- Tall Ironweed
- Tall Milkweed, Poke Milkweed
- Tall Nutrush
- Tall Oatgrass
- Tall Rattlesnake-root
- Tall Scouring-rush, River Scouring-rush
- Tall Swamp Witchgrass
- Tall Thistle
- Tall Thoroughwort
- Tall Tick-trefoil
- Tall Wheatgrass
- Tall White Beardtongue
- Tall White Violet
- Tall Yelloweyed Grass
- Tapertip Cupgrass
- Tartarian Aster
- Tarweed
- Tassel grape-hyacinth
- Tassel-rue, False Bugbane
- Tawny Bluestem, Bog Bluestem
- Tawny Cottongrass
- Tea
- Teff
- Tenlobe False Foxglove
- Ternstroemia
- Terrestrial Water-starwort
- Texas Bluegrass
- Texas Gaura
- Texas Hatpins
- Texas Lantana, Hierba de Cristo
- Texas Millet, Texas Signalgrass
- Texas Needlegrass
- Texas Prickly-pear
- Texas Sedge
- Texas Snakeweed
- Texas Stork's-bill
- Texas Toadflax
- Texas Vervain
- Thick-pod White Wild Indigo
- Thick-root Buttercup, Early Buttercup
- Thicket Sedge
- Thickleaf Downy Ground-cherry
- Thin Paspalum
- Thinleaf Orach, Fat-hen
- Thintail
- Thorne's Beaksedge
- Thorny-olive, Autumn Silverberry
- Threadfoot, Riverweed, Riffleweed
- Threadleaf Arrowhead
- Threadleaf Coreopsis
- Threadleaf False Foxglove
- Threadleaf Sundrops, Flaxleaf Sundrops
- Threadleaved Beaksedge
- Threadstalk Gaura
- Three Birds Orchid, Nodding Pogonia, Nodding Ettercap
- Three-angle Spikerush
- Three-nerved Joe-pye-weed
- Three-stamen Waterwort
- Threelobe Buttercup
- Threepart Violet
- Threespike Goosegrass
- Threeway Sedge
- Thunberg's Amaranth
- Thunberg's Lespedeza
- Thunberg's meadowsweet
- Thurber's Fescue
- Thymeleaf Pinweed
- Thymeleaf Speedwell
- Ticklegrass, Small Bentgrass, Hairgrass
- Tidal Marsh Obedient-plant, Swamp Obedient-plant
- Timothy
- Timothy Canarygrass
- Tiny Bluet
- Tiny Duckweed
- Tiny Lazy-daisy
- Tiny pea
- Tiny Vetch, Hairy Tare
- Tiny Waterwort
- Titi, Swamp Titi
- Toad Rush
- Tomato
- Toothache Grass, Orange Grass
- Toothcup
- Toothed Flatsedge
- Toothed White-topped Aster
- Toothleaf Ground-cherry
- Topsy Blackberry, Chesapeake Blackberry
- Torpedo Grass
- Torrey's Beaksedge
- Torrey's Eupatorium
- Torrey's Mountain-mint
- Tracy's Beaksedge
- Tracy's Bluestem
- Trailing Arbutus, Mayflower, Ground Laurel
- Trailing Indigo
- Trailing Phlox
- Trampweed
- Tree-of-Heaven, Copal Tree, Stink-tree
- Triangle-leaved Violet
- Tricky Fimbry
- Trifoliate Orange, Hardy Orange
- Trilisa
- Tropical Amaranth, Smartweed Amaranth
- Tropical Bushmint
- Tropical Dropseed
- Tropical Flatsedge
- Tropical Mexican Clover
- Tropical Soda Apple
- Tropical Spiderwort, Bengal Dayflower
- Tropical Sprangletop
- Tropical Water-hyssop
- Trumpet-creeper
- Tubeflower, Turk's-turban
- Tuberous Sunflower, Swamp Sunflower
- Tuberous Vervain
- Tulip-tree, Yellow Poplar, Whitewood
- Tumble Mustard, Jim Hill Mustard
- Tumbleweed Amaranth
- Tunbridge Filmy Fern, Tunbridge Fern
- Tung-oil Tree, Tung Tree
- Turk's-cap Lily, Lily-royal
- Turkey Oak
- Turkeybeard, Beargrass, Mountain-asphodel
- Turnip, Bird's-rape, Field Rape, Field Mustard, Bok-choy, Chinese Cabbage
- Turnsole
- Turpentine-root, Virginia Snakeroot, Serpent Birthwort
- Tussuck Sedge, Upright Sedge
- Twig-rush, Fen-sedge, Smooth Sawgrass
- Twiggy Mullein
- Twining Snoutbean
- Twisted Spikerush
- Twisted-hair Spikemoss
- Twisted-leaf White-topped Aster
- Two-flower Melic
- Two-leaved Miterwort
U
10 plants
V
54 plants
- Vahl's Fimbry
- Valley Head Hawthorn
- Valley Redstem, Scarlet Ammannia
- Vallisneria, Water-celery, Tapegrass, Eelgrass
- Variable Flatsedge, Smallflower Umbrella Sedge
- Variable Witchgrass
- Variable-leaf Heartleaf
- Vasey Grass
- Vasey's Eupatorium
- Vasey’s Goldenrod
- Veiny Hawkweed
- Velvet Grass, Soft Grass, Yorkshire-fog
- Velvet Sedge
- Velvet Witchgrass
- Velvetbean, Bengal Bean, Florida Bean
- Velvetleaf, Pie-marker, Butterprint
- Velvety Lespedeza
- Velvety Tick-trefoil
- Venus Flytrap, Meadow Clam, Tippitiwitchet
- Venus'-comb, Shepherd's-needle
- Venus'-hair Fern, Southern Maidenhair
- Vigorous Rush, Round-headed Rush
- Vine-wicky, Climbing Fetterbush
- Violet Burmannia
- Violet Crabgrass
- Violet Lespedeza
- Viper's-bugloss, Blueweed
- Viperina
- Virgin's-bower
- Virginia Bartonia
- Virginia Bugleweed
- Virginia Buttonweed
- Virginia Chain Fern
- Virginia Copperleaf
- Virginia Dayflower
- Virginia Dwarf-dandelion
- Virginia Goat's-rue
- Virginia Ground-cherry
- Virginia Hedge-hyssop, Round-fruit Hedge-hyssop
- Virginia Lespedeza
- Virginia Marbleseed
- Virginia Meadow-beauty, Deergrass, Handsome Harry, Wing-stem Meadow-beauty
- Virginia Pine, Scrub Pine, Jersey Pine
- Virginia Plantain, Hoary Plantain
- Virginia Quillwort
- Virginia Spiderwort
- Virginia Stickseed
- Virginia Thistle
- Virginia Yellow Flax
- Virginia-creeper
- Virginia-cress, Sibara
- Virginia-willow, Sweetspire, Tassel-white
- Viscid Hedge-hyssop, Short’s Hedge-hyssop
- Viviparous Spikerush
W
229 plants
- Walking Fern
- Walter's Aster
- Walter's Violet, Prostrate Blue Violet
- Walter's Wingstem
- Walter’s Marsh St. John's-wort
- Walter’s Sedge
- Walter’s Sedge, Pocosin Sedge
- Wand Blazing Star
- Wand Goldenrod
- Wand Lespedeza
- Wandering Jew, Small-leaf Spiderwort
- Wandlike Three-awn Grass
- Ware's Hairsedge
- Wart-cress, Lesser Swine-cress
- Wartweed
- Warty Panic Grass
- Warty Sedge
- Washerwoman
- Washington Hawthorn
- Water Ash, Pop Ash, Carolina Ash
- Water Dawnflower
- Water Dropwort
- Water Flag, Yellow Flag
- Water Hickory, Bitter Pecan
- Water Hyacinth
- Water Lettuce
- Water Locust
- Water Oak, Paddle Oak
- Water Paspalum, Horsetail Crown Grass
- Water Smartweed
- Water Spangles
- Water Sundew, Spoonleaf Sundew
- Water Tupelo, Tupelo Gum, Cotton Gum
- Water-hemlock
- Water-oleander, Water-willow, Swamp Loosestrife, Peatweed
- Water-parsnip
- Water-pimpernel, Brookweed
- Water-purslane
- Water-shield, Purple Wen-dock
- Water-spider Orchid, Floating Orchid
- Water-willow
- Watercress
- Wateree River Trillium
- Watermelon
- Waterpepper
- Waterpod
- Wattle Signalgrass
- Wavy scaly cloakfern
- Wavy-leaved Violet
- Wavyleaf Aster
- Wax-mallow, Turk's-cap Mallow
- Waxy mannagrass
- Weak Bluegrass
- Weak Rush
- Weak Stellate Sedge
- Weakleaf Yucca
- Weatherby’s Arrowhead
- Webber's Witchgrass
- Wedge Leaf Whitlow Grass
- Wedgeleaf Eupatorium, Broadleaf Bushy Eupatorium
- Weedy Black-eyed Susan
- Weeping Lovegrass
- Weeping Willow
- West Indian Beaksedge
- West Indian Chickweed
- West Indian Dropseed
- West Indian Indigo
- West Indian Wood-nettle
- West Indies Meadow-beauty
- Western Bitterweed
- Western Horsenettle
- Western Prairie-trefoil
- Western Purslane Speedwell
- Western Sampson's-snakeroot
- Western Sampson's-snakeroot
- Western Stickseed
- Western Swamp Milkweed
- Wetland White Bluestem
- Whiskfern
- White Arrowleaf Aster
- White Ash, American Ash
- White Avens
- White Baneberry, Dolls'-eyes, White Cohosh
- White Bear Sedge
- White Beech, American Beech
- White Blue-eyed-grass
- White Burmannia
- White Campion, White Cockle, Evening Lychnis
- White Clover, Dutch Clover, Ladino Clover
- White Edge Sedge
- White Edged Sedge
- White Evening-primrose, Pink-ladies
- White Grass, White Cutgrass
- White Irisette, Isothermal Irisette
- White Meadow-beauty
- White Melilot, White Sweetclover
- White Milkweed, Redring Milkweed
- White Morning-glory, Whitestar
- White Mulberry, Silkworm Mulberry, Russian Mulberry
- White Oak
- White Prairie-goldenrod, Upland White Aster
- White Sage, Prairie Sage, Western Mugwort
- White Sandhills Spurge, Curtis's Spurge
- White Spikerush
- White Tridens
- White Turtlehead
- White Vervain, Velvetleaf Vervain
- White Waterlily
- White Wicky
- White-bracted Thoroughwort
- White-edged Flatsedge
- White-edged Witchgrass
- White-flowered Cat’s-ear
- White-flowered Leafcup
- White-haired Witchgrass
- White-nymph
- White-seeded Beaksedge
- White-tinged Sedge
- Whitehead Sedge.
- Whiteleaf Greenbriar, Wild Sarsaparilla
- Whiteleaf Sunflower
- Whitestar morning glory
- Whitestem Filaree
- Whitetop Fleabane
- Whitlow-grass
- Whorled Aster, Whorled Nodding-aster
- Whorled Horsebalm
- Whorled marshpennywort
- Whorled Milkweed
- Whorled Mountainmint
- Wide-leaved Spiderwort, Zigzag Spiderwort
- Wideleaf Blue-stars
- Wigeon-grass, Ditch-grass
- Wild Azalea, Pinxterflower, Pinxterbloom Azalea, Election Pink
- Wild Bean, Wild Kidney Bean
- Wild Black Cherry
- Wild Bleeding Heart
- Wild Bushbean
- Wild Caia, Yellow Cleome
- Wild Comfrey
- Wild Cow Pea
- Wild Crabapple
- Wild Crabapple
- Wild Four-o'clock, Pale Umbrella-wort
- Wild Geranium
- Wild Hyacinth, Quamash Lily, Eastern Camas Lily
- Wild Indigo, Carolina Indigo
- Wild Leek, Yorktown Onion
- Wild Olive, Devilwood
- Wild Onion
- Wild Pansy, Field Pansy
- Wild Petunia, Seaside Petunia
- Wild Radish, Jainted Charlock, White Charlock
- Wild Sarsaparilla
- Wild Strawberry
- Wild Sweet Potato, Manroot, Man-of-the-earth
- Wild Teasel, Common Teasel
- Wild White Clover, Carolina Clover
- Wild White Violet
- Wild Yam
- Wild-licorice
- Willdenow’s Sedge
- Willow Oak
- Willow-weed, Dockleaf Smartweed, Pale Smartweed
- Willowleaf Lettuce
- Windmill-grass
- Windowbox Woodsorrel
- Wineberry
- Wineflower
- Winged Elm
- Winged Euonymus
- Winged Monkey-flower
- Winged Seedbox
- Winged Sumac, Flameleaf Sumac
- Winged-pigweed
- Wingstem Water-primrose
- Winter Grapefern
- Winter Jasmine
- Winterberry
- Wintercreeper, Chinese Spindle-tree
- Wintergreen Quillwort
- Wintergreen, Teaberry, Checkerberry
- Wire Sedge
- Wireleaf Dropseed
- Wireweed
- Wiry Panic Grass
- Witchweed
- Wood Anemone
- Wood Violet
- Wood Violet
- Wood-nettle
- Wood's Sedge
- Woodland Agrimony
- Woodland Bittercress
- Woodland Black-eyed Susan
- Woodland Bluegrass
- Woodland Bulrush
- Woodland Coreopsis
- Woodland Goosefoot
- Woodland Ladies'-tresses, Pale Green Ladies'-tresses
- Woodland Lettuce
- Woodland Muhly
- Woodland Panic Grass
- Woodland Spurge
- Woodland Spurge, Tinted Spurg
- Woods-grass
- Woody Glasswort, Perennial Glasswort
- Woody Goldenrod
- Woolgrass Bulrush
- Woolly Coneflower
- Woolly Croton, Hogwort, Capitate Croton
- Woolly Dutchman's-pipe, Pipevine
- Woolly Dwarf Hawthorn
- Woolly Fimbry
- Woolly Lipfern
- Woolly Mullein, Common Mullein, Flannel-plant, Velvet-plant
- Woolly Plantain
- Woolly Ragwort
- Woolly Witchgrass
- Woollysheath Three-awn
- Wooly Clover
- Wormseed Mustard
- Wormseed, Epazote
- Wright's Beaksedge
- Wright's cliffbrake
- Wright's Plantain
- Wright's Witchgrass
- Wrinkle-leaf Goldenrod
- Wrinkled Jointgrass
X
No plants found starting with X
Y
41 plants
- Yard Grass, Goose Grass
- Yaupon
- Yellow Asphodel
- Yellow Birch
- Yellow bract-spike
- Yellow Buckeye
- Yellow Butterwort
- Yellow Cucumber-tree, Showy Cucumber Magnolia
- Yellow Flatsedge
- Yellow Floating Heart
- Yellow Fringed Orchid
- Yellow Giant-hyssop
- Yellow Hatpins, Bantam-buttons
- Yellow Hedge-hyssop, Golden-pert
- Yellow Honeysuckle
- Yellow Indiangrass
- Yellow Jewelweed, Yellow Touch-me-not, Pale Touch-me-not
- Yellow King-devil, Yellow Fox-and-cubs
- Yellow Mandarin, Yellow Fairybells
- Yellow Meadow-beauty, Golden Meadow-beauty
- Yellow Melilot, Yellow Sweetclover, Ribbed Melilot
- Yellow Nodding Ladies'-tresses
- Yellow Nutsedge, Yellow Nutgrass, Wild Chufa, Earth-almond
- Yellow Nutsedge, Yellow Nutgrass, Wild Chufa, Earth-almond
- Yellow Oak, Chinquapin Oak
- Yellow Pimpernel
- Yellow Pitcherplant, Trumpets
- Yellow Rose, Manchu Rose
- Yellow Spinypod
- Yellow Sunnybell
- Yellow Unicorn-plant
- Yellow-and-blue Scorpion-grass, Changing Forget-me-not
- Yellow-fruited Sedge
- Yellow-fruited Yellow Flax
- Yellow-wood
- Yellowgroove Bamboo
- Yellowroot, Brook-feather
- Yellowseed False-pimpernel
- Yerba-de-tajo
- Yonkapin, American Lotus-lily, Yellow Lotus, Yockernut, Water-chinquapin, Pond-nuts
- Youngia, Tall False Hawksbeard
Z
2 plants