Page authors: Don Knoke, David Giblin
Leptosiphon bicolor
bicolored babystars, bicolored linanthus

Distribution: Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; southwestern British Columbia to California.

Habitat: Open areas at lower elevations.

Flowers: April-June

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern


Slender annual up to 1.5 dm. tall, the stem puberulent, often branched at the base, otherwise usually simple.


Leaves rather firm, palmately 3-7 cleft, up to 2 cm. long, the segments linear, harshly ciliate.


Flowers fragrant, sub-sessile in a dense, terminal, leafy cluster, the inflorescence leaves longer and more prominently ciliate than the lower; calyx firm, 5-10 mm. long, the 5 segments with needle-like tips; corolla with a very slender tube up to 3 cm. long, the throat yellow, the 5 abruptly-flaring, short lobes deep pink to purplish or white; stamens 5, the filaments attached in the corolla throat; style 3-parted; ovary superior.


Capsule with 3, several-seeded carpels.

Accepted Name:
Leptosiphon bicolor Nutt.
Publication: Proc. Acad. Nat. Sci. Philadelphia 4(1): 11. 1848. 1848.

Synonyms & Misapplications:
Linanthus bicolor (Nutt.) Greene [HC]
Linanthus bicolor (Nutt.) Greene var. bicolor [HC]
Additional Resources:

PNW Herbaria: Specimen records of Leptosiphon bicolor in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Leptosiphon bicolor checklist entry.

E-Flora BC: Leptosiphon bicolor atlas page.

CalPhotos: Leptosiphon bicolor photos.

USDA Plants: Leptosiphon bicolor information.

31 photographs:
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