Page author: David Giblin
Claytonia megarhiza
fell-fields Claytonia
WTU specimens
Other herbaria

Distribution: Occurring in the Wenatchee Mountains of Washington; in scattered locations from Northwest Territories south to California, east to the Rocky Mountains.

Habitat: Gravelly soil and talus slopes, mid- to high elevations in the mountains.

Flowers: June-August

Origin: Native

Conservation Status: Not of concern

Description:
General:

Perennial from a fleshy, elongated, simple or forked taproot up to 2 cm. thick, the crown simple or branched, the flowering stems several to many.

Leaves:

Basal leaves numerous, fleshy, forming rosettes, the blade obovate-oblanceolate, 5-25 mm. wide, narrowed to a petiole 1- to 3-times as long as the blade; cauline leaves 2, opposite, reduced, linear.

Flowers:

Inflorescence a flat-topped raceme with 2-9 bracteate flowers; pedicels 5-40 mm. long; sepals 2, green or reddish, obtuse or acute, persistent, 4-9 mm. long; petals 5, white to rose or deep pink, 7-15 mm. long; stamens 5, attached to the base of the petals; style 1, with 3 short stigmas.

Fruits:

Capsule ovoid, 4-5 mm. long.

Accepted Name:
Claytonia megarhiza (A. Gray) Parry ex S. Watson
Publication: Smithsonian Misc. Collect. 258: 118. 1878 (as megarrhiza). 1878.

Synonyms & Misapplications:
Claytonia arctica Adams var. megarhiza A. Gray
Claytonia megarhiza (A. Gray) Parry ex S. Watson var. bellidifolia (Rydb.) C.L. Hitchc. [HC]
Claytonia megarhiza (A. Gray) Parry ex S. Watson var. megarhiza [HC]
Claytonia megarhiza (A. Gray) Parry ex S. Watson var. nivalis (English) C.L. Hitchc. [HC]
Additional Resources:

PNW Herbaria: Specimen records of Claytonia megarhiza in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Claytonia megarhiza checklist entry.

E-Flora BC: Claytonia megarhiza atlas page.

CalPhotos: Claytonia megarhiza photos.

USDA Plants: Claytonia megarhiza information.

29 photographs:
Group by