Page authors: Don Knoke, David Giblin
Phacelia heterophylla

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.

Habitat: Widespread in dry, open places from the foothills to middle elevations in the mountains.

Flowers: May-July

Origin: Native

Growth Duration: Biennial, Perennial

Conservation Status: Not of concern

Pollination: Bumblebees, bees, butterflies, wasps, sawflies


Biennial or short-lived perennial from a taproot, with a single, erect, stout stem 2-12 dm. tall, sometimes surrounded by several ascending, smaller stems; herbage often with spreading bristles and glandular hairs.


Leaves narrowly elliptic, pointed, with 1 or 2 pairs of small leaflets at the base of the blade; petioles, but not blades, reduced upward.


Inflorescence elongate, densely bristly, the lower flower clusters with leafy bracts; calyx divided nearly to the base, lobes 5; corolla dull white, 5-lobed, 3-6 mm. long and broad, the filaments conspicuously exerted, hairy near the middle; style 2-cleft.


Fruit a capsule.

Accepted Name:
Phacelia heterophylla Pursh
Publication: Fl. Amer. Sept. (Pursh) 1: 140. 1813.

Synonyms & Misapplications:
Phacelia heterophylla Pursh var. heterophylla [HC, HC2]
Phacelia heterophylla Pursh var. virgata (Greene) Dorn [HC2]
Additional Resources:

PNW Herbaria: Specimen records of Phacelia heterophylla in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Phacelia heterophylla checklist entry.

OregonFlora: Phacelia heterophylla information.

E-Flora BC: Phacelia heterophylla atlas page.

CalPhotos: Phacelia heterophylla photos.

USDA Plants: Phacelia heterophylla information.

51 photographs:
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