Bouteloua trifida var. burkii

(Scribn. ex S. Watson) Vasey ex L.H. Dewey
Treatment appears in FNA Volume 25. Treatment on page 264.

Panicle branches ascending to divergent, rarely appressed. Lower glumes 1.7-3.1 mm, veins excurrent for 0.05-0.2 mm, usually not exceeding the apical lobes; upper glumes 1.9-3.2 mm, veins excurrent for 0.05-0.2 mm, usually not exceeding the apical teeth; lower lemmas conspicuously appressed pubescent across the lower 2/3 - 4/5 and along most or all of the margins, awns 2.2-4.5 mm; anthers 0.2-0.3 mm. Caryopses 0.8-1.2 mm long, 0.5-0.6 mm wide, flat or slightly concave adaxially. 2n = 20.

Discussion

Bouteloua trifida var. burkii grows in southern New Mexico, southern Texas, and adjacent Mexico.

Selected References

None.

Lower Taxa

None.