Tridens strictus |
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longspike tridens |
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Habit | Plants with hard, knotty, shortly rhizomatous bases. |
Culms | 50-170 cm, stiffly erect. |
Sheaths | rounded, glabrous except for a few hairs on either side of the collar; ligules about 0.5 mm, membranous, ciliate; blades 2-8 mm wide, flat or loosely infolded, glabrous, tapering to the apices. |
Panicles | 10-30(36) cm long, 1-2 cm wide; branches to 6 cm, erect or appressed; pedicels 1-1.5 mm, glabrous. |
Spikelets | 4-7 mm, with 5-11 florets. |
Glumes | 4-7 mm, always conspicuously exceeding and often twice as long as the adjacent lemmas, usually equaling or exceeding the distal florets, glabrous, 1-veined, tapering to acuminate apices; calluses pilose; lemmas (2)3-3.5 mm, veins pilose to well above midlength, lateral veins often excurrent; paleas 2-3 mm, bases not bowed-out; anthers 1-1.5 mm. |
Caryopses | 1-1.5 mm. |
2n | = 40. |
Tridens strictus |
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Distribution |
AL; AR; FL; GA; IL; KS; KY; LA; MO; MS; NC; OK; PA; SC; TN; TX; VA
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Discussion | Tridens strictus grows in open woods, old fields, right of ways, and coastal grasslands. It is endemic to the United States. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 34. |
Parent taxa | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Tridens |
Sibling taxa | |
Name authority | (Nutt.) Nash |
Web links |