Flora of North America species comparison

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Bothriochloa longipaniculata

longspike beardgrass, longspike silver bluestem
Culms

60-150(200) cm tall, 2-4 mm thick, robust;

nodes glabrous or shortly hirsute.
Leaves

cauline, evenly distributed, glabrous, dark green;

ligules 2.5-3 mm;

blades 12-20 cm long, (3)4-7 mm wide, flat to folded.
Panicles

9-20 cm, narrowly lanceolate, silvery-white or light tan;

rachises 7-15 cm, with numerous branches;

branches 3-5 cm, shorter than the rachises, erect, without axillary pulvini, with multiple rames;

rame internodes with a membranous groove wider than the margins, margins copiously hairy, hairs 3-8 mm, at least somewhat obscuring the spikelets.
Sessile

spikelets (3)3.5-4.5 mm, narrowly ovate to lanceolate, shiny green, apices acute;

lower glumes hirtellous on the lower 1/2, hairs shorter than 0.8 mm, lacking a dorsal pit;

awns 9-14 mm;

anthers 1-2 mm.
Pedicellate

spikelets 1.8-2.8 mm, sterile.
2n

= 120.

Bothriochloa longipaniculata
Distribution
from FNA
LA; MS; TX
[BONAP county map]
Discussion

Bothriochloa longipaniculata grows at 2-200 m, along roadsides and in fields, open woodlands, disturbed ground, and swales of the Gulf coastal prairie, often in heavy clay soil. Its range extends from southern Texas and Louisiana to northeastern Mexico and possibly Panama.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 25, p. 640.
Parent taxa Poaceae > subfam. Panicoideae > tribe Andropogoneae > Bothriochloa
Sibling taxa
B. alta, B. barbinodis, B. bladhii, B. edwardsiana, B. exaristata, B. hybrida, B. ischaemum, B. laguroides, B. pertusa, B. springfieldii, B. wrightii
Synonyms B. saccharoides var. longipaniculata, Andropogon saccharoides var. longipaniculata
Name authority (Gould) Allred & Gould
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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