Page authors: Don Knoke, David Giblin
Heuchera cylindrica
lava alumroot, poker alumroot, roundleaf alumroot

Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Wyoming, and Nevada.

Habitat: Rocky soil, cliffs and talus slopes, foothills to the subalpine.

Flowers: April-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Flies


Strong perennial from a branching crown and short, thick rhizomes, the flowering stems 1.5-9 dm. tall, at least the upper portion covered with stalked glands.


Leaves basal, long-petiolate, the blades ovate-oblong to cordate-ovate, mostly 1-6 cm. broad, from glabrous to glandular-puberulent.


Inflorescence a spike-like panicle, the peduncles and pedicels together shorter than the flowers; calyx 6-8 mm. long, cream-colored, the 5 lobes oblong-lanceolate to obovate, considerable longer than the tubular portion; petals white, linear, shorter than the sepals, 5 or less, or lacking; stamens 5, the filaments elongating after blooming.


Ovary mostly inferior; capsule 6-10 mm. long, the 2 carpels with conical beaks.

Accepted Name:
Heuchera cylindrica Douglas
Publication: Fl. Bor.-Amer. 1: 236. 1832.

Synonyms & Misapplications:
Heuchera cylindrica Douglas var. alpina S. Watson [HC]
Heuchera cylindrica Douglas var. cylindrica [HC]
Heuchera cylindrica Douglas var. glabella (Torr. & A. Gray) Wheelock [HC]
Heuchera cylindrica Douglas var. orbicularis (Rosend., Butters & Lakela) Calder & Savile [KZ99]
Heuchera cylindrica Douglas var. ovalifolia (Torr. & A. Gray) Wheelock
Heuchera cylindrica Douglas var. septentrionalis Rosend., Butters & Lakela [KZ99]
Heuchera cylindrica Douglas var. suksdorfii (Rydb.) Dorn
Heuchera glabella Torr. & A. Gray
Heuchera ovalifolia Torr. & A. Gray
Heuchera ovalifolia Torr. & A. Gray var. orbicularis Rosend., Butters & Lakela
Heuchera ovalifolia Torr. & A. Gray var. thompsonii Rosend., Butters & Lakela
Heuchera saxicola E.E. Nelson
Heuchera suksdorfii Rydb.
Additional Resources:

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

WA Flora Checklist: Heuchera cylindrica checklist entry.

OregonFlora: Heuchera cylindrica information.

E-Flora BC: Heuchera cylindrica atlas page.

CalPhotos: Heuchera cylindrica photos.

USDA Plants: Heuchera cylindrica information.

89 photographs:
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