Contains 55 accepted taxa overall.
Characteristics
Cyperus has recently been expanded to include Kyllinga, Lipocarpha, and Oxycaryum (Larridon et al. 2011; Larridon et al. 2013; Bauters et al. 2014).
Classification
Citation
CYPERUS Linnaeus, Sp. Pl. 44. 1753.
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TYPE: Cyperus esculentus Linnaeus 1753. Lectotypified by Britton, Bull. Dept. Agric. Jamaica 5(suppl. 1): 6. 1907.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Cyperus articulatus | Jointed Flatsedge | Native Rare-State SX (State Rank) G4G5 (Global Rank) | ||
| Cyperus bipartitus | Slender Flatsedge, Shining Flatsedge | Native Rare-State S2 (State Rank) G5 (Global Rank) | ||
| Cyperus blepharoleptos | Cuban-bulrush | Not Native | ||
| Cyperus brevifolioides | Asiatic Greenhead Sedge | Not Native | ||
| Cyperus brevifolius | Perennial Greenhead Sedge | Not Native Rare-State S2S3 (State Rank) | ||
| Cyperus compressus | Poorland Flatsedge | Native S5 (State Rank) | ||
| Cyperus croceus | Baldwin’s Flatsedge | Native S5 (State Rank) | ||
| Cyperus cuspidatus | Coastal Plain Flatsedge | Native Rare-State S1 (State Rank) | ||
| Cyperus dentatus | Toothed Flatsedge | Native | ||
| Cyperus difformis | Variable Flatsedge, Smallflower Umbrella Sedge | Not Native | ||
| Cyperus distinctus | Swamp Flatsedge | Native Rare-State S1 (State Rank) | ||
| Cyperus drummondii | Drummond's Sedge | Native Rare-State S1 (State Rank) | ||
| Cyperus echinatus | Globe Flatsedge | Native S5 (State Rank) | ||
| Cyperus entrerianus | Deep-rotted sedge, Woodrush flatsedge | Not Native | ||
| Cyperus eragrostis | Tall Flatsedge | Not Native | ||
| Cyperus erythrorhizos | Redroot Flatsedge | Native S5 (State Rank) | ||
| Cyperus esculentus var. leptostachyus | Yellow Nutsedge, Yellow Nutgrass, Wild Chufa, Earth-almond | Not Native | ||
| Cyperus esculentus var. macrostachyus | Yellow Nutsedge, Yellow Nutgrass, Wild Chufa, Earth-almond | Not Native | ||
| Cyperus filicinus | Fern Flatsedge | Native | ||
| Cyperus filiculmis | Southeastern Flatsedge | Native | ||
| Cyperus flavescens | Yellow Flatsedge | Native S5 (State Rank) | ||
| Cyperus flavicomus | White-edged Flatsedge | Native Rare-State S3? (State Rank) | ||
| Cyperus granitophilus | Granite Flatsedge | Native Rare-State S1? (State Rank) | ||
| Cyperus grayi | Gray’s Flatsedge | Native Rare-State S2 (State Rank) | ||
| Cyperus haspan | Sheathed Flatsedge | Native | ||
| Cyperus hortensis | Annual Greenhead Sedge | Native S5 (State Rank) | ||
| Cyperus hystricinus | Bristly Flatsedge | Native Rare-State S2? (State Rank) | ||
| Cyperus involucratus | Umbrella-plant | Not Native | ||
| Cyperus iria | Rice-field Flatsedge | Not Native | ||
| Cyperus lancastriensis | Many-flowered Flatsedge | Native Rare-State S2S3 (State Rank) | ||
| Cyperus lanceolatus | Epiphytic flatsedge | Not Native SNA (State Rank) | ||
| Cyperus lecontei | Leconte's Flatsedge | Native Rare-State S1 (State Rank) | ||
| Cyperus leptocarpus | Not Native | |||
| Cyperus lupulinus var. lupulinus | Great Plains Flatsedge | Native | ||
| Cyperus lupulinus var. macilentus | Great Plains Flatsedge | Native | ||
| Cyperus metzii | Crested Greenhead Sedge | Not Native | ||
| Cyperus neotropicalis | American Lipocarpha | Native Rare-State S3 (State Rank) | ||
| Cyperus odoratus var. odoratus | Fragrant Flatsedge | Native | ||
| Cyperus ovatus | Ovateleaf Flatsedge | Native | ||
| Cyperus oxylepis | Sharpscale Flatsedge | Not Native | ||
| Cyperus pilosus | Fuzzy Flatsedge | Not Native | ||
| Cyperus plukenetii | Starburst Flatsedge, Plukenet’s Flatsedge | Native | ||
| Cyperus polystachyos | Coast Flatsedge | Native S5 (State Rank) | ||
| Cyperus pseudovegetus | Green Flatsedge, Marsh Flatsedge | Native S5 (State Rank) | ||
| Cyperus refractus | Reflexed Flatsedge | Native Rare-State S2 (State Rank) | ||
| Cyperus retrofractus | Rough Flatsedge | Native Rare-State S3 (State Rank) | ||
| Cyperus retrorsus | Pineland Flatsedge | Native S5 (State Rank) | ||
| Cyperus rotundus | Purple Nutsedge, Nutgrass, Cocograss | Not Native | ||
| Cyperus sesquiflorus | Whitehead Sedge. | Native | ||
| Cyperus squarrosus var. squarrosus | Awned Flatsedge | Not Native SU (State Rank) | ||
| Cyperus subsquarrosus | Smallflower Halfchaff | Native Rare-State S2 (State Rank) | ||
| Cyperus surinamensis | Tropical Flatsedge | Native Rare-State S3 (State Rank) | ||
| Cyperus tetragonus | Four-angled Flatsedge | Native Rare-State S2 (State Rank) | ||
| Cyperus thyrsiflorus | Cyperus thyrsiflorus | Native | ||
| Cyperus virens | Green Flatsedge | Native S5 (State Rank) |
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||