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Montana Field Guide

Montana Field Guides

Nelson's Needlegrass - Stipa nelsonii
Other Names:  Achnatherum nelsonii, Stipa columbiana, Stipa williamsii


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 6

External Links






 
General Description
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 or dorei.

Species Range
Present
 


Range Comments
AK and western Canada, south through most of the western US, UT, east to TX.

Summary of Observations Submitted for Montana
Number of Observations: 73

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
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).

References
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Citation for data on this website:
Nelson's Needlegrass — Stipa nelsonii.  Montana Field Guide.  .  Retrieved on , from