Vascular Plants - Grossulariaceae - Ribes:
Ribes acerifolium
Page Authors: Don Knoke, David Giblin
maple-leaf currant 
Blooms: June-August
Habit: shrub
Duration: perennial
Origin: Native
Conservation Status: Abundant; of no concern.

Distribution: Occurring in the Cascades, Olympic Mountains, and northeastern Washington; Southern British Columbia south to Oregon, east to Idaho.
Habitat: Stream banks, meadowland thickets, open ridges and rock slides, mid-elevations in the mountains to timberline.
Species Description:

General: Spreading to erect shrub, the stems under 1 m. tall, the whole plant finely puberulent and covered with stalked glands.
Leaves: Leaves alternate, petiolate, the blades palmately veined, deeply cordate, 3-8 cm. broad and somewhat shorter, lobed about half their length into 3 main and 2 smaller, ovate-deltoid, bi-serrate segments, the teeth rounded.
Flowers: Inflorescence a pendant raceme, 7- to 15-flowered, shorter than the leaves; pedicels jointed under the ovary; calyx tube shallowly bowl shaped, 1.5 mm. long, lined internally with a thick disk, from the rim of which the 5 petals and 5 stamens arise, the whole forming a short tube in the center of the flower; the 5 calyx lobes broadly ovate-oblong, 3 mm. long and over half as broad, spreading, the tips recurved; petals red, 1-1.5 mm. long, obovate with a wedge-shaped base, inwardly pouched and spreading; filaments strongly flattened, glabrous; styles glabrous, united to the stigmas.
Fruits: Berry glaucous-black, globular, up to 1 cm. long.
Accepted Name:
Ribes acerifolium T.J. Howell
Synonyms:
Ribes howellii Greene

Treated in Flora of the PNW as:
Ribes howellii
Additional Resources:

PNW Herbaria Specimens: View list of all Ribes acerifolium specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Ribes acerifolium specimens in the WTU Herbarium database.

Washington Flora Checklist: Ribes acerifolium treatment.

E-Flora BC: Ribes acerifolium atlas page.

CalPhotos: Ribes acerifolium images.

USDA Plants Database: Ribes acerifolium.
Additional photographs of Ribes acerifolium:
(click on a thumbnail to view larger photo)

H. Tim Gladwin

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Tim Gladwin, 1991

H.W. Buckingham, 1995

H.W. Buckingham, 1995

H.W. Buckingham, 1995

H.W. Buckingham, 1995

H.W. Buckingham, 1995

Jim Riley

Susan McDougall, 2014

Don Jacobson, 2016
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Washington Native Plant Society
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