Page authors: Don Knoke, David Giblin
Eriogonum compositum
arrow-leaf buckwheat, northern buckwheat

Distribution: Occurring chiefly east of the Cascades crest in Washington; Washington to California, east to Idaho.

Habitat: Dry, open areas, rocky slopes and cliffs from low elevations nearly to the subalpine.

Flowers: May-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Stout perennial from a woody taproot, the broad crown somewhat shrubby, the several stems and leaves forming a plant to 5 cm. high and broad.


Basal, lanceolate to deltoid, more or less cordate-based, white-woolly beneath and green above, on petioles as long to several times as long as the blade.


Flowering stems stout and naked, the inflorescence a compound umbel 2-20 cm. broad, with linear bracts at the base of both primary and secondary umbels; involucres 6-10 mm. long, lobed about half their length, the lobes usually reflexed: tepals either creamy-white or lemon-yellow, about 5 mm. long, with a stipe-like base about 1 mm. long.

Identification Notes:

The usually large, heart-shaped leaves that are green on top and woolly white beneath will usually identify this species.

Accepted Name:
Eriogonum compositum Douglas ex Benth.
Publication: Edwards's Bot. Reg. 21: plate 1774. 1835.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Eriogonum compositum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Eriogonum compositum checklist entry.

OregonFlora: Eriogonum compositum information.

E-Flora BC: Eriogonum compositum atlas page.

CalPhotos: Eriogonum compositum photos.

USDA Plants: Eriogonum compositum information.

118 photographs:
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