familyPoaceae
subfamilyPoaceae subfam. Chloridoideae
genusBouteloua
subgenusBouteloua subg. Chondrosum
speciesBouteloua trifida
Bouteloua trifida var. trifida
Treatment appears in FNA Volume 25. Treatment on page 264.
Panicle branches appressed to ascending, occasionally divergent. Lower glumes 2.2-3.4 mm, midveins excurrent for 0.1-0.6 mm; upper glumes 2.7-4 mm, midveins excurrent for 0.2-1 mm; lower lemmas glabrous or sparsely appressed pubescent along both sides of the veins, awns (3.2)4-6.6 mm; anthers 0.3-0.4 mm. Caryopses 1.3-1.5 mm long, 0.4-0.5 mm wide, grooved adaxially. 2n = unknown.
Distribution
Utah, Calif., Ariz., Nev., N.Mex., Tex.
Discussion
Bouteloua trifida var. trifida grows in dry plains and rocky slopes, mostly at 300-1500 m, from southern California, Nevada, and Utah to Texas and Mexico.
Selected References
None.
Lower Taxa
None.
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