Carex scirpoidea subsp. pseudoscirpoidea

(Rydberg) D. A. Dunlop

Novon 7: 355. 1998.

Basionym: Carex pseudoscirpoidea Rydberg Mem. New York Bot. Gard. 1: 78. 1900
Synonyms: Carex scirpoidea var. pseudoscirpoidea (Rydberg) Cronquist
Treatment appears in FNA Volume 23.

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. Scales ovate, 2.8 × 1.5 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.

Phenology: Fruiting Jun–Sep (depending on elevation).
Habitat: Dry ridge sites, fellfields with gravelly and noncalcareous soils
Elevation: 3300–3900 m


V23 1046-distribution-map.jpg

B.C., Calif., Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.


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

Selected References


Lower Taxa

Debra A. Dunlop +
(Rydberg) D. A. Dunlop +
Carex pseudoscirpoidea +
B.C. +, Calif. +, Colo. +, Idaho +, Mont. +, Oreg. +, Utah +, Wash. +  and Wyo. +
3300–3900 m +
Dry ridge sites, fellfields with gravelly and noncalcareous soils +
Fruiting Jun–Sep (depending on elevation). +
Illustrated +  and Endemic +
Carex scirpoidea var. pseudoscirpoidea +
Carex scirpoidea subsp. pseudoscirpoidea +
Carex scirpoidea +
subspecies +