Difference between revisions of "Andropogon gracilis"

Spreng.
Common names: Wire bluestem
Synonyms: Schizachyrium sericatum unknown Schizachyrium gracile unknown
Treatment appears in FNA Volume 25. Treatment on page 653.
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|subfamily=Poaceae subfam. Panicoideae
 
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|tribe=Poaceae tribe Andropogoneae

Revision as of 20:23, 24 September 2019

Plants densely cespitose. Culms 20-60 cm, wiry, glabrous. Sheaths smooth; ligules to 1.4 mm; blades to 45 cm long, to 4 mm wide, involute and filiform, or folded. Inflorescence units 3-50+ per culm; peduncles 2-13.2 cm, with 1 rame; rames 2-4 cm, usually long-exserted at maturity; internodes densely pubescent, hairs to 8 mm. Sessile spikelets 4-6 mm; lower glumes scabrous in the distal 1/2; awns 11-20 mm. Pedicellate spikelets reduced to an awned or unawned glume, sterile. 2n = 40.

Distribution

Puerto Rico, Virgin Islands, Fla.

Discussion

Andropogon gracilis grows on oolite in openings and rocky margins of pine woodlands of southern Florida and the West Indies. Although not uncommon, it is frequently overlooked. It has sometimes been placed in Schizachyrium because of its solitary rames.

Selected References

None.

Lower Taxa

None.