Thurber's Needlegrass - Stipa thurberiana
Stems 40–70 cm. Leaves: blades 1–2 mm wide, essentially hairless at the throat; ligule 3–6 mm long. Inflorescence a contracted panicle 5–16 cm long. Spikelets 10–15 mm long. Lemmas with appressed hairs, awn 3–5 cm with plumose hairs on the lower portion (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Specimen coll. 7/28/43, presumably in flower.
Distinguished from Stipa comata by glumes less than 15 mm long, and conspicuously hairy on lower part of awn. Distinguished from other hairy species of Stipa
by hairs on the awn that are 1 mm long or longer.
Observations in Montana Natural Heritage Program Database
Number of Observations:
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- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.