Flora of North America species comparison

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Setaria scheelei

Souths estern bristlegrass, Southwestern bristlegrass
Habit Plants perennial; cespitose.
Culms

60-120 cm;

nodes pilose, with appressed hairs.
Sheaths

glabrous or hispid;

ligules 1-2 mm, hispid;

blades 15-30 cm long, 6-15 mm wide, flat or folded, scabrous, often pubescent.
Panicles

15-25 cm, open, tapering from the base;

rachises pubescent to villous;

lower branches to 3 cm;

bristles usually solitary, 10-35 mm, divergent.
Spikelets

2.2-2.5 mm, elliptical.
Lower glumes

about 1/2 as long as the spikelets, 3-veined;

upper glumes from 3/4 as long as to equaling the upper florets, 5-veined;

lower lemmas equaling the upper lemmas, 5-veined;

lower paleas about 1/2 as long as the upper paleas, lanceolate;

upper lemmas finely cross-wrinkled, shortly apiculate;

upper paleas ovate-lanceolate.
2n

= 54.

Setaria scheelei
Distribution
from FNA
AZ; TX
[WildflowerSearch map]
[BONAP county map]
Discussion

Setaria scheelei grows in alluvial soils of canyons and river bottoms of New Mexico and Texas. Within the Flora region, it is particularly abundant in the limestone canyons of the Edwards Plateau of central Texas. Its range extends into central Mexico.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 25, p. 548.
Parent taxa Poaceae > subfam. Panicoideae > tribe Paniceae > Setaria > subg. Setaria
Sibling taxa
S. adhaerans, S. arizonica, S. barbata, S. chapmanii, S. corrugata, S. faberi, S. grisebachii, S. italica, S. leucopila, S. liebmannii, S. macrosperma, S. macrostachya, S. magna, S. megaphylla, S. palmifolia, S. parviflora, S. pumila, S. rariflora, S. reverchonii, S. setosa, S. sphacelata, S. texana, S. verticillata, S. verticilliformis, S. villosissima, S. viridis
Name authority (Steud.) Hitchc.
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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