Nelson's Needlegrass - Stipa nelsonii
Achnatherum nelsonii, Stipa columbiana, Stipa williamsii
MNPS Threat Rank
Stems 30–80 cm. Leaves: blades 2–5 mm wide, hairless at throat region; sheaths conspicuously hairy or glabrate; ligule 1–2 mm long. Inflorescence a contracted panicle 10–30 cm long. Spikelets 8–12 mm long. Lemmas appressed hairy, with an awn 2–4 cm long (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Our plants are subspecies nelsonii
AK and western Canada, south through most of the western US, UT, east to TX.
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
Open dry settings, including mountain big sagebrush steppe, at middle elevations in the mountains (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
- 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.