Flora of North America species comparison

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Andropogon bicornis

Barbas de indio
Habit Plants densely cespitose, upper portion dense, obovate to obpyramidal.
Culms

60-250 cm;

internodes not glaucous.
Sheaths

smooth;

ligules 0.6-1 mm;

blades 20-70 cm long, 2-7 mm wide, usually glabrous or scabrous on the margins.
Inflorescence units

50-500; subtending sheaths 2.5-4.5 cm long, 2-3 mm wide;

peduncles 20-70 mm, with 2(3) rames;

rames 2-4 cm, exerted at maturity;

internodes filiform, densely and evenly pubescent, hairs 3-9 mm.
Sessile

spikelets 3-4 mm; unawned;

callus hairs 0.5-1 mm;

keels of lower glumes scabrous above the midpoint;

anthers 3, 1-1.4 mm.
Pedicellate

spikelets mostly vestigial or absent, 1-2 of those in the terminal units on each rame 3-5 mm and staminate.
2n

= 60, 120.

Andropogon bicornis
Distribution
from FNA
FL; PR; Virgin Islands
[BONAP county map]
Discussion

Andropogon bicornis is a widespread species of the Western Hemisphere tropics. It was collected in the early 1960s in Dade County, Florida, near the track of a major hurricane, but may not be established in the Flora region.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 25, p. 655.
Parent taxa Poaceae > subfam. Panicoideae > tribe Andropogoneae > Andropogon > sect. Leptopogon
Sibling taxa
A. arctatus, A. brachystachyus, A. floridanus, A. gerardii, A. glomeratus, A. gracilis, A. gyrans, A. hallii, A. liebmannii, A. longiberbis, A. ternarius, A. tracyi, A. virginicus
Name authority L.
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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