Difference between revisions of "Hesperostipa neomexicana"
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Latest revision as of 17:22, 11 May 2021
Culms 40-100 cm; lower nodes glabrous. Lower sheaths glabrous or puberulent, not ciliate; ligules of lower leaves 0.5-1 mm, thickly membranous, rounded; ligules of upper leaves to 3 mm, scarious, acute; blades 0.5-1 mm wide. Panicles 10-30 cm. Glumes subequal, 30-60 mm; florets 15-18 mm; calluses 4-5 mm; lemmas evenly pubescent, hairs shorter than 1 mm; awns 120-220 mm, first 2 segments hairy, hairs mostly 0.2-1 mm, terminal segment flexible, pilose, hairs 1-3 mm. 2n = 44.
Distribution
Okla., N.Mex., Tex., Utah, Wyo., Colo., Ariz., Nev.
Discussion
Hesperostipa neomexicana grows in grassland, oak, and pinyon pine associations, from 800-2400 m, usually in well-drained, rocky areas in the southwestern United States and adjacent Mexico. It is similar to H. comata subsp. comata, differing in its longer awn hairs and shorter ligules.
Selected References
None.