Ranunculus glaberrimus
sagebrush buttercup
WTU specimens
Other herbaria

Distribution: East side of the Cascades, British Columbia to northern California, east to the Dakotas

Habitat: Sagebrush desert, shrub-steppe and ponderosa pine woodlands

Flowers: March - Early June

Origin: Native

Conservation Status: Not of concern

Description:
General:

Perennial from a large cluster of fleshy roots, the several stems mostly erect, 5-20 cm. long, nearly glabrous, simple or branched above.

Leaves:

Leaves mostly basal, somewhat fleshy, elliptic to rotund, entire to deeply 3-lobed, the petiole 1-several times as long as the blade; cauline leaves 1-several, similar to the basal leaves but short-petiolate.

Flowers:

Flowers 1-several on petioles up to 10 cm. long; sepals 5, spreading, purplish-tinged, 5-8 mm. long, glabrous to stiff-hairy; petals 5, yellow, 8-15 mm. long; nectary scale wedge-shaped, 1.5-2 mm. long, forming a deep pocket, with hairs along the free portion; receptacle globose; stamens 40-80; pistils 30-150.

Fruits:

Achenes 1.5-2 mm. long, in a semi-globose cluster 10-20 mm. wide.

Accepted Name:
Ranunculus glaberrimus Hook.
Publication: Fl. Bor.-Amer. 1: 12. 1829.

Synonyms & Misapplications:
(none provided)
Infraspecies:
var. ellipticus – sagebrush buttercup
var. glaberrimus – sagebrush buttercup    British Columbia to northern California, east to the Dakotas
Additional Resources:

PNW Herbaria: Specimen records of Ranunculus glaberrimus in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Ranunculus glaberrimus checklist entry.

E-Flora BC: Ranunculus glaberrimus atlas page.

CalPhotos: Ranunculus glaberrimus photos.

USDA Plants: Ranunculus glaberrimus information.

85 photographs:
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