Distribution: Occurring on both sides of the Cascades crest in Washington, but more common west of the crest; British Columbia to California, east to Idaho and Utah.
Habitat: Shady, wooded slopes, forest openings and edge, from low to middle elevations in the mountains.
Flowers: April-July
Origin: Native
Growth Duration: Annual
Conservation Status: Not of concern
Pollination: Bees, flies, sawflies
Delicate annual from a taproot, the stem widely branched, weak, 0.5-3 dm. tall, sparsely stiff-hairy.
Leaves opposite, stiff-hairy, the blade 1-3.5 cm. long and 0.8-2.5 cm. wide, with 2 pairs of lateral lobes or coarse teeth.
Flowers solitary in the leaf axils, the pedicels 2-15 mm. long at flowering but elongating to up to 3 cm. in fruit; corolla lavender, shortly surpassing the calyx, cup-shaped, 1-4.5 mm. wide; calyx lobes 2-3 mm. long, the alternating appendages under 1 mm; stamens 5, the filaments short; style short, deeply 2-cleft.
Capsule 1-seeded.
Publication: Trans. Linn. Soc. London 17(2): 275. 1835.
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var. austiniae – small-flowered nemophila
Occurring east of the Cascades crest in Washington; north-central Washington to California, east to Idaho and Nevada. -
var. parviflora – small-flowered nemophila Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; southwestern British Columbia to California.
PNW Herbaria: Specimen records of Nemophila parviflora in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Nemophila parviflora checklist entry
OregonFlora: Nemophila parviflora information
E-Flora BC: Nemophila parviflora atlas page
CalPhotos: Nemophila parviflora photos
