Flora of North America species comparison

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Carex scirpoidea subsp. pseudoscirpoidea
Photo is of parent taxon

single-spike sedge, western single-spike sedge
Habit Plants not cespitose; rhizomes long.
Culms

erect, 5–31 cm.
Leaves

sheaths and bases from previous year’s leaves persistent;

blades widely V-shaped in cross section, to 21 cm × 3 mm.
Perigynia

ovate, (1.5–)2–2.8(–3) × 1.5 mm, body tightly enveloping achene for entire length.
Achenes

1.5–1.8 × 0.9–1.2 mm.
Scales

ovate, 2.8 × 1.5 mm.

Carex scirpoidea subsp. pseudoscirpoidea
Phenology Fruiting Jun–Sep (depending on elevation).
Habitat Dry ridge sites, fellfields with gravelly and noncalcareous soils
Elevation 3300–3900 m (10800–12800 ft)
Distribution
from FNA
CA; CO; ID; MT; OR; UT; WA; WY; BC
[BONAP county map]
Discussion

Compared to Carex scirpoidea subsp. pseudo-scirpoidea, C. scirpoidea subsp. scirpoidea occurs at relatively lower elevations and in wetter sites with calcareous soils.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 23.
Parent taxa Cyperaceae > Carex > sect. Scirpinae > Carex scirpoidea
Sibling taxa
C. scirpoidea subsp. convoluta, C. scirpoidea subsp. scirpoidea, C. scirpoidea subsp. stenochlaena
Synonyms C. pseudoscirpoidea, C. scirpoidea var. pseudoscirpoidea
Name authority (Rydberg) D. A. Dunlop: Novon 7: 355. (1998)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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