Page authors: Don Knoke, David Giblin
Holosteum umbellatum

Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east across most of North America to the Atlantic Coast.

Habitat: Disturbed, open areas in sagebrush desert, roadsides, fields, wastelots, and other disturbed areas.

Flowers: April-May

Origin: Introduced from Europe

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Bees, flies


Somewhat glandular-pubescent annual, the 1-several stems simple or basally branched, 5-20 cm. tall.


Leaves mainly in a basal rosette, lanceolate to oblong, 10-20 mm. long; cauline leaves 2-3 remote pairs, ovate-lanceolate, 10-35 mm. long, sessile.


Flowers 4-16 in a terminal umbel, the pedicels slender, 2-3 cm. long; sepals 5, distinct, about 3 mm. long; petals 5, white, equaling the calyx, the tips erose; stamens 5; styles 3.


Capsule ovoid-cylindric, twice as long as the calyx, opening by 6 valves.

Accepted Name:
Holosteum umbellatum L.
Publication: Sp. Pl. 1: 88. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Holosteum umbellatum checklist entry.

OregonFlora: Holosteum umbellatum information.

E-Flora BC: Holosteum umbellatum atlas page.

CalPhotos: Holosteum umbellatum photos.

USDA Plants: Holosteum umbellatum information.

23 photographs:
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