Page authors: Don Knoke, David Giblin
Eremogone aculeata
needle-leaf sandwort, prickly sandwort

Distribution: Occurring east of the Cascades crest in southeastern Washington; southeastern Washington to California, east to Montana, Utah, and Nevada.

Habitat: Gravelly sagebrush-covered hills from moderate elevations to the alpine.

Flowers: June-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Tufted perennial from a freely-branched, woody base, forming mats 5-15 cm. broad; flowering stems numerous, 10-20 cm. tall, glandular-pubescent with dark-tipped hairs.


Leaves mostly basal, forming thick, prickly cushions, rigid and sharp-pointed, spreading, narrowly linear, 1-2 cm. long and less than 0.5 mm. wide; cauline leaves few, 1-2 pairs, greatly reduced.


Flowers several to numerous, in open, diffuse cymes; sepals 5, broadly ovate, 3-4 mm. long, obtuse, wing-margined and purplish-tinged; petals 5, white, nearly twice as long as the sepals; stamens 10; styles 3.


Capsule ovoid, about the length of the calyx, dehiscent by 6 teeth.

Accepted Name:
Eremogone aculeata (S. Watson) Ikonn.
Publication: Novosti Sist. Vyssh. Rast. 10: 139. 1973.

Synonyms & Misapplications:
Arenaria aculeata S. Watson [HC]
Arenaria fendleri A. Gray var. aculeata (S. Watson) S.L. Welsh
Arenaria pumicola Coville & Leiberg var. californica Maguire
Additional Resources:

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

WA Flora Checklist: Eremogone aculeata checklist entry

OregonFlora: Eremogone aculeata information

E-Flora BC: Eremogone aculeata atlas page

CalPhotos: Eremogone aculeata photos

19 photographs:
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