Distribution: Introduced in Washington to California, east to Montana, and along the East Coast
Habitat: Roadsides, dry to moist open areas
Flowers: May - August
Origin: Introduced from Europe
Conservation Status: Not of concern
Slender, puberulent, sparsely-leafy annual from fibrous roots, the simple or moderately-branched stems 1-5 dm. tall.
Leaves 1-4 cm. long and 2-8 mm. wide, the lowermost oblanceolate, the others scattered, oblong to nearly linear.
Inflorescence of nearly naked spikes, usually elongate and paired, sometimes with a bract or two near the base; pedicels 1-3 mm. long, ascending; calyx 3-5 mm. long, the tube with short, hooked hairs, the 5 lobes appressed-puberulent; corolla tube narrow, the 5 lobes abruptly spreading, the limb 1-2 mm. wide, yellow, changing to blue; hairy appendages opposite the corolla lobes at the top of the tube.
Nutlets 4, attached near the base, brownish, smooth and shining.