Page authors: Don Knoke, David Giblin
Calyptridium umbellatum

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Baja California, east to Montana, Wyoming and Utah.

Habitat: Ponderosa pine forest openings to alpine slopes.

Flowers: June-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, butterflies, beetles, wasps


Annual to perennial, glabrous, fleshy herbs from a much-branched, thickened crown, the branches often numerous, spreading, forming mats up to 15 cm. broad


Leaves all basal, glabrous, tufted, forming rosettes, obovate-spatulate to oblanceolate, broadly petiolate, 1.5-5 cm. long.


Flowers in heads up to 4 cm. broad on peduncles 1-10 cm. tall, these leafless or with 1-several very small bract-like leaves; sepals 2, persistent, white- to pinkish-bordered, 4-10 mm. broad; petals 4, oblong, about equal to the sepals at flowering, pinkish to white, quickly withering; stamens 3, opposite the largest petals; style 1.


Capsule flattened.

Accepted Name:
Calyptridium umbellatum (Torr.) Greene
Publication: Bull. Torrey Bot. Club 13: 144. 1886.

Synonyms & Misapplications:
Calyptridium umbellatum (Torr.) Greene var. caudiciferum (A. Gray) Jeps. [VPBC4, JPM]
Calyptridium umbellatum (Torr.) Greene var. umbellatum
Cistanthe umbellata (Torr.) Hershk. [FNA4]
Cistanthe umbellata (Torr.) Hershk. var. caudicifera (A. Gray) Kartesz & Gandhi [KZ99]
Cistanthe umbellata (Torr.) Hershk. var. umbellata [KZ99]
Spraguea umbellata Torr. [HC]
Spraguea umbellata Torr. var. caudicifera A. Gray [HC]
Spraguea umbellata Torr. var. umbellata [HC]
Additional Resources:

PNW Herbaria: Specimen records of Calyptridium umbellatum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Calyptridium umbellatum checklist entry.

OregonFlora: Calyptridium umbellatum information.

E-Flora BC: Calyptridium umbellatum atlas page.

CalPhotos: Calyptridium umbellatum photos.

USDA Plants: Calyptridium umbellatum information.

60 photographs:
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