Page authors: Don Knoke, David Giblin
Eremogone congesta
ballhead sandwort, capitate sandwort

Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to the Rocky Mountains.

Habitat: Sagebrush desert to alpine slopes.

Flowers: June-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Tufted, glabrous perennial from a branched, woody crown, forming mats up to 15 cm. broad, the flowering stems leafy, 1.5-4 dm. tall.


Leaves linear, 1-nerved, 0.5-8 cm. long, the basal ones with bundles of secondary leaves in their axils.


Flowers several to many, usually congested in a head-like cluster, occasionally more open; sepals 5, 1-nerved, broadly scarious-margined, thickened on the back at the base, 3-6 mm. long; petals 5, white, half again as long as the sepals; stamens 10; styles 3.


Capsule equaling the sepals, firm-walled, opening by 6 teeth.

Accepted Name:
Eremogone congesta (Nutt.) Ikonn.
Publication: Novosti Syst. Vyssh. Rast. 10: 139. 1973.

Synonyms & Misapplications:
Arenaria congesta Nutt. [HC]
Additional Resources:

PNW Herbaria: Specimen records of Eremogone congesta in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Eremogone congesta checklist entry

OregonFlora: Eremogone congesta information

E-Flora BC: Eremogone congesta atlas page

CalPhotos: Eremogone congesta photos

53 photographs:
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