Page authors: Don Knoke, David Giblin
Heuchera glabra
alpine alumroot, smooth alumroot

Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Oregon.

Habitat: Streambanks and moist rocks, from the coast to above timberline

Flowers: June-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Flies


Slender perennial from well-developed rhizomes, the 1-several stems 2.5-6 dm. tall, mostly glabrous.


Leaves mostly basal, the blades cordate-ovate, 3-9 cm. broad and shorter than wide, glabrous on the upper surface, 5-lobed nearly half way to the base, the lobes unevenly toothed; cauline leaves 1-2, greatly reduced and bract-like.


Inflorescence large, many-flowered and open, the branches and pedicels filiform; calyx obconic, 2-3 mm. long, the 5 lobes ovate-oblong, glandular-pubescent, 2/3 as long as the tubular portion; petals 5, white, 2-4 times as long as the sepals, with slender claws equal to the spatulate, entire blades; stamens 5, exserted.


Ovary mostly inferior; capsule 5-6 mm. long, the 2 carpels with short, slender beaks; seeds narrowly ellipsoid, slightly curved, 3-4 times long as broad, with prominent rows of spines.

Accepted Name:
Heuchera glabra Willd. ex Roem. & Schult.
Publication: Syst. Veg. 6: 216. 1820.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Heuchera glabra in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Heuchera glabra checklist entry.

OregonFlora: Heuchera glabra information.

E-Flora BC: Heuchera glabra atlas page.

CalPhotos: Heuchera glabra photos.

USDA Plants: Heuchera glabra information.

19 photographs:
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