Andropogon gyrans |
Andropogon gyrans var. gyrans |
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Elliott's bluestem |
Elliott's beardgrass, Elliott's bluestem |
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Habit | Plants cespitose, cylindrical to ovate above. | |||||
Culms | 30-100 (140) cm; internodes usually glaucous; branches mostly erect, straight. |
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Sheaths | smooth; ligules 0.3-1.5 mm, sometimes ciliate, cilia to 0.7 mm; blades 6-48 cm long, 0.8-5 mm wide, glabrous or densely pubescent with spreading hairs. |
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Inflorescence units | 2-31 per culm; subtending sheaths (2.6)4.1-4.5(13.5) cm long, (1.5)2.7-4.7(8) mm wide; peduncles (1)5-31(195) mm, with 2-5 rames; rames (1.5)2.8-4.2(6) cm, exserted or not at maturity, pubescence increasing in density distally within each internode. |
usually with 2-5 rames; rames usually concealed at maturity. |
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Sessile | spikelets (3)3.9-4.7(5.7) mm; callus hairs 1-5 mm; keels of lower glumes scabrous only beyond midlength; awns 8-24 mm; anthers 1, 0.6-1.4(1.7) mm, yellow or purple. |
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Pedicellate | spikelets vestigial or absent. |
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Ligules | 0.3-0.8(1.1) mm. |
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2n | = 20. |
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Andropogon gyrans |
Andropogon gyrans var. gyrans |
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Distribution |
AL; AR; DC; DE; FL; GA; IL; IN; KY; LA; MD; MO; MS; NC; NJ; OH; OK; PA; SC; TN; TX; VA; WV
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AL; AR; DC; DE; FL; GA; IL; IN; KY; LA; MD; MO; MS; NC; NJ; OH; OK; PA; SC; TN; TX; VA; WV |
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Discussion | Andropogon gyrans extends from the southeastern United States to the Caribbean and Central America. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Andropogon gyrans var. gyrans generally grows in dry, sandy soil of roadsides, embankments, fields, and pine or oak woods, occasionally in moister soil. Its range extends south from the United States to the Caribbean and Central America. Plants from Florida and Mississippi do not have inflated sheaths. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 25, p. 657. | FNA vol. 25, p. 657. | ||||
Parent taxa | Poaceae > subfam. Panicoideae > tribe Andropogoneae > Andropogon > sect. Leptopogon | Poaceae > subfam. Panicoideae > tribe Andropogoneae > Andropogon > sect. Leptopogon > Andropogon gyrans | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | A. subtenuis, A. elliottii var. projectus, A. elliottii | A. campyloracheus | ||||
Name authority | Ashe | unknown | ||||
Web links |