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Montana Field Guide

Montana Field Guides

Little Ricegrass - Oryzopsis exigua
Other Names:  Piptatherum exiguum

Native Species

Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

External Links






 
General Description
Stems 15–35 cm. Leaves: blades 0.5–1.5 mm wide, scabrous, ligules 1–3 mm long. Inflorescence a raceme or narrow panicle 3–7 cm long. Spikelets 3.5–4.5 mm long. Lemmas mostly hairless, with a deciduous bent awn 4–6 mm long (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Throughout much of western North America (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 3

(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

References
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Citation for data on this website:
Little Ricegrass — Oryzopsis exigua.  Montana Field Guide.  .  Retrieved on , from