Calochortus coeruleus

(Kellogg) S. Watson

Proc. Amer. Acad. Arts 14: 263. 1879.

Common names: Beavertail-grass
Basionym: Cyclobothra coerulea Kellogg Proc. Calif. Acad. Sci. 2: 4. 1863
Synonyms: Calochortus coeruleus var. fimbriatus Ownbey Calochortus maweanus
Treatment appears in FNA Volume 26. Treatment on page 124. Mentioned on page 120, 125.

Stems not branching, 0.3–2 dm. Leaves: basal persistent, 1–2 dm; blade linear, flat. Inflorescences 1–10-flowered. Flowers erect to spreading; perianth open, campanulate; sepals oblong-lanceolate, ca. 10 mm, glabrous, apex acuminate; petals light blue, obovate, 8–12 mm, adaxial surface hairy only distal to gland, margins ciliate to apex, apex acuminate; glands slightly depressed, bordered proximally by ciliate membrane, distally by short hairs; anthers oblong, apex acute to acuminate. Capsules nodding, not winged, 1–2 cm, apex acute. Seeds irregular. 2n = 20.

Phenology: Flowering late spring–mid summer.
Habitat: Open gravelly places in woods
Elevation: 600–2500 m


Calochortus coeruleus appears to intergrade with C. tolmiei to some extent, especially in petal ciliation (K. L. Chambers, pers. comm.), and it might better be treated as a variety of the latter, more widespread species.

Selected References


Lower Taxa

... more about "Calochortus coeruleus"
P. L. Fiedler +  and R. K. Zebell +
(Kellogg) S. Watson +
Cyclobothra coerulea +
Beavertail-grass +
600–2500 m +
Open gravelly places in woods +
Flowering late spring–mid summer. +
Proc. Amer. Acad. Arts +
Calochortus coeruleus var. fimbriatus +  and Calochortus maweanus +
Calochortus coeruleus +
Calochortus +
species +