Page author: Don Knoke
Ranunculus hebecarpus
downy buttercup
WTU specimens
Other herbaria

Distribution: Eastern Washington and adjacent Idaho, south to Arizona and Baja California.

Habitat: Moist to rather dry hillsides and woodlands.

Flowers: March-May

Origin: Native

Conservation Status: Threatened in Washington (WANHP)

Description:
General:

Delicate annual with soft, fine hairs and filiform roots, the stems moderately branched, erect, 1-2.5 dm. tall.

Leaves:

Basal leaves with long, slender petioles, the blades 5-10 mm. long, cordate, 3-parted and lobed; cauline leaves alternate, the blades to 20 mm. long and 30 mm. wide, ternate and lacerate-lobed into oblong segments.

Flowers:

Flowers on slender pedicles 1-2 cm. long; sepals 5, petaloid, soft-hairy, 1-1.5 mm. long; petals pale yellow, 1-5 or lacking, equalling the sepals but narrower; nectary above the midpoint of the petal, the scale glabrous, attached only by the broad base, deltoid; receptacle globose, glabrous; stamens 6-15.

Fruits:

Achenes 4-10, nearly circular, compressed, about 2 mm. long, covered with numerous short, hooked bristles; stylar beak stout, slightly hooked.

Accepted Name:
Ranunculus hebecarpus Hook. & Arn.
Publication: Bot. Beechey Voy. 316. 1838. 1838.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Ranunculus hebecarpus checklist entry.

E-Flora BC: Ranunculus hebecarpus atlas page.

CalPhotos: Ranunculus hebecarpus photos.

USDA Plants: Ranunculus hebecarpus information.

9 photographs:
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