General: Perennial, tufted grass from fibrous roots; stems erect, 30-70 cm tall.
Leaves: Sheaths smooth to rough, strongly ribbed, not fringed along the margins; blades in-rolled and 0.5-2 mm wide, or if flat, up to 4 mm wide; ligules of the upper leaves to 7 mm long, usually pointed, sometimes jagged at the tips.
Flowers: Inflorescence a loose, but narrow panicle, 10-28 cm long, the branches ascending; glumes narrow, nearly equal, papery; lower glumes 18-35 mm long, upper glumes 1-3 mm shorter; lemmas 7-13 mm long, evenly covered with 1 mm-long white hairs or smooth across the back of the lemma, awned, the awns firm and straight or zig-zagged and curved, 5-30 cm long; calluses 2-4 mm long, hairy.
Notes: Two subspecies occur in BC:
1. Terminal segment of the awn firm, straight or almost so, usually less than 5.5 cm long.................... ssp. intermedia (Scribn. & Tweedy) Barkw.
1. Terminal segment of the awn zig-zagged, curved, usually more than 5.5 cm long................... ssp. comata
Hesperostipa comata var. intermedia (Scribn. & Tweedy) Dorn Stipa comata var. falcata B. Boivin p.p. Stipa comata var. intermedia Scribn. & Tweedy Stipa comata var. suksdorfii H. St. John Stipa tweedyi
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2019. E-Flora BC:
Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for
Advanced Spatial Analysis, Department of Geography, University of British
Columbia, Vancouver. [Accessed:
22/09/2019 3:59:10 PM
The information contained in the E-Flora atlas pages is derived from expert
sources as cited in each section. This information is scientifically based.
E-Flora also acts as a portal to other sites via deep links. As
always, users should refer to the original sources for complete information.
E-Flora BC is not responsible for the accuracy or completeness of the