Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Moist areas, sea level to middle elevations in the mountains.
Flowers: June-September
Origin: Native
Growth Duration: Annual, Biennial
Conservation Status: Not of concern
Annual or biennial herbs, usually glabrous throughout, the simple to freely-branched, lightly angled stems 5-40 cm. tall.
Basal leaves several, oblanceolate, 5-40 mm. long; cauline leaves opposite, 5-8 pairs, ovate-lanceolate and clasping-based to lanceolate or oblong-oblanceolate and merely sessile, up to 6 cm. long and 3 cm. broad.
Flowers with pedicels 0.5-20 mm. long subtended by bractlets, usually numerous, flowering from near the base of the stem, on long peduncles from the leaf axils and terminal; calyx about 1/3 to the length of the corolla, 4-5 lobed about 3/4 its length, more deeply on one side, the lobes linear to lanceolate, unequal; corolla violet to blue to pale yellowish, apparently tubular, with 4-5 lobes half the length of the tube with thread-like projections at the base over 1/2 as long; stamens included, attached low in the corolla tube, not winged; ovary superior, without a stipe.
Capsule 1-celled, 2-valved, slightly exceeding the persistent corolla.
PNW Herbaria: Specimen records of Gentianella amarella in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Gentianella amarella checklist entry
OregonFlora: Gentianella amarella information
E-Flora BC: Gentianella amarella atlas page
CalPhotos: Gentianella amarella photos