Carex idahoa

L. H. Bailey

Bot. Gaz. 21: 5. 1896.

IllustratedEndemicConservation concern
Synonyms: Carex parryana subsp. idahoa (L. H. Bailey) D. F. Murray Carex parryana var. statonii M. E. Jones
Treatment appears in FNA Volume 23. Mentioned on page 409.

Plants loosely cespitose. Culms 25–40 cm, distally scabrous. Leaves 2–5 mm wide. Inflorescences: proximal bracts shorter than inflorescences; spikes erect, separate, short-pendunculate, short-oblong or elongate, 10–25 × 5–7 mm; lateral 1–3 spikes pistillate or absent, scarcely longer than 1/2 the length of terminal spike; terminal spike gynecandrous, pistillate, or, infrequently, staminate. Pistillate scales brown or almost black, margins narrow-hyaline, lanceolate, as long as, usually longer and as wide as perigynia, midvein lighter colored than body, conspicuous, frequently raised, prominent, distally scabrous, apex acute to mucronate. Perigynia ascending, pale yellow or brown, veinless to few-veined, elliptic to obovate, 2–3 × 1.5–1.75 mm, distal margins serrulate, apex abruptly beaked, smooth; beak 0.2–0.3 mm, truncate or shallowly bidentate, serrulate. Achenes nearly filling body of perigynia.

Phenology: Fruiting Jun–Sep.
Habitat: Riparian moist meadows
Elevation: 2000–2600 m


V23 737-distribution-map.jpg

Calif., Idaho, Mont., Oreg., Utah.


Of conservation concern.

Selected References


Lower Taxa

... more about "Carex idahoa"
David F. Murray +
L. H. Bailey +
Calif. +, Idaho +, Mont. +, Oreg. +  and Utah. +
2000–2600 m +
Riparian moist meadows +
Fruiting Jun–Sep. +
Illustrated +, Endemic +  and Conservation concern +
Carex parryana subsp. idahoa +  and Carex parryana var. statonii +
Carex idahoa +
Carex sect. Racemosae +
species +