Contains 4 accepted taxa overall.
Characteristics
Classification
Citation
ARNOGLOSSUM Rafinesque, Fl. Ludov. 64. 1817.
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TYPE: Arnoglossum plantagineum Rafinesque
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Arnoglossum atriplicifolium | Pale Indian-plantain | |||
| Arnoglossum ovatum var. lanceolatum | Savanna Indian-plantain | |||
| Arnoglossum plantagineum | Groovestem Indian-plantain | |||
| Arnoglossum reniforme | Great Indian-plantain |
Identification Key
1. Leaf blades broadly cordate-ovate to deltate, 0.8-1.6 times longer than wide, the basal veins widely divergent (sometimes a few elliptic and to 2.7 times longer than wide)
2
1. Leaf blades ovate, elliptic, to linear, 1.5-15(20) times longer than wide, the basal veins mostly ascending-arcuate
3
2. Stem smooth to striate; stems or leaf blade lower surfaces often glaucous; leaves membranous; phyllary midvein lacking a wing
2. Stem ribbed or angular; stems and leaf blade lower surfaces not glaucous; phyllary midvein winged
3. Basal leaf blades regularly crenate, crenate-dentate, to shallowly dentate, with 10-30 teeth per side, the distal ones with 3-10 teeth per side
3. Basal leaf blades entire, lobed, or dentate, with 0-9 teeth per side
4
4. Stems terete; leaf blades entire to sinuate; phyllary midvein lacking a wing
5
4. Stem strongly ridged or angled; leaf blades coarsely dentate (at least some) to entire
6
5. Basal and proximal leaf blades 2.7-15(20) times longer than wide
5. Basal and proximal leaf blades 1.6-2.6 times longer than wide
6. Basal leaf bades 15-37 cm long, the lateral veins appressed to strictly ascending-arcuate; involucre 10-13.4 mm long; phyllary midvein wing widest at base, irregularly coarsely erose-dentate to erose-sinuate; corolla 9-10.5 mm long, the tube 0.9-1 mm wide
6. Basal leaf blades 12-15(20) cm long, the lateral veins divergent to ascending-arcuate; involucre (8)8.5-9.9(12) mm long; phyllary midvein wing widest near middle or apex, infrequently widest at base, entire or sinuate to irregularly finely dentate; corolla 7-8(9.5) mm long, the tube 0.6-0.7 mm wide
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||