View in other NatureServe Network Field Guides
NatureServe
Montana
Utah
Wyoming
Idaho
Wisconsin
British Columbia
South Carolina
Yukon
California
New York
Roughleaf Ricegrass - Oryzopsis asperifolia
Native Species
Global Rank:
G5
State Rank:
S4
C-value:
5
Agency Status
USFWS:
USFS:
BLM:
External Links
General Description
Stems 20–60 cm tall, erect to widely spreading. Leaves: blades mostly 5–9 mm wide, scabrous, ligules 0.5–1 mm long. Inflorescence a raceme or narrow panicle 3–11 cm long. Spikelets 6–8 mm long. Lemmas sparsely hairy, with a deciduous awn 6–12 mm long. Dry meadows and open understory (Lavin in
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Range Comments
Across northern U.S., throughout the Rocky Mountain States, and across much of Canada excepting the extreme northern latitudes (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations: 268
(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
- Literature Cited AboveLegend: View Online Publication
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?- Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
- Web Search Engines for Articles on "Roughleaf Ricegrass"