Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California and Arizona.
Habitat: Drier areas at low elevations.
Flowers: April-June
Origin: Native
Growth Duration: Annual
Conservation Status: Not of concern
Pollination: Bumblebees, bees, hummingbirds
Slender annual 1-3.5 dm. tall, the stem usually simple, the herbage with short, stiff spreading hairs throughout.
Leaves alternate, all cauline, narrowly lance-linear, long-tapered to the base, 2-6 cm. long, entire or the upper 3-cleft.
Inflorescence elongate and narrow, the bracts becoming shorter and more cleft than the leaves, white or yellowish; calyx equally lobed; corolla 1-2.5 cm. long, linear, whitish to pinkish, the lower lip more yellowish with some purple spots; teeth of the lower lip erect, slender, nearly equaling the galea
Capsule.
PNW Herbaria: Specimen records of Castilleja attenuata in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Castilleja attenuata checklist entry
OregonFlora: Castilleja attenuata information
E-Flora BC: Castilleja attenuata atlas page
CalPhotos: Castilleja attenuata photos