Western Single-spike Sedge - Carex scirpoidea ssp. pseudoscirpoidea
MNPS Threat Rank
Plants rhizomatous, dioecious. Stems 10-40 cm, shorter than leaves. Leaf blades 1.5-4 mm wide. Pistillate inflorescence: spikelets generally 1, sometimes 2, upper generally larger; spikelet bract wanting or if present then shorter than spike, sometimes leaf-like and sheathing; floral bract obtuse or with a small point, equal to or longer than the perygynium in width, ciliate or not, often minutely hairy, brown to black with wide white margin. Perygyinia 20-40 per spikelet, ascending, 2-3.5 mm long, 1-1.7 mm wide, 3-sided, faintly veined, purplish, faces minutely hairy (at least near beak), beak 0.4-0.7 mm long; fruit 1.5-2.1 mm long, 0.7-1.1 mm wide, more or less equal to length of peryginium body (Mastrogiuseppe, 1993, The Jepson Manual).
BC to MT and ID, south to CA, WY, UT, CO (Kartesz 2009).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Rocky, seasonally wet areas.
- 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.