General: annual herb, 5-40 cm tall, simple or branched, lax
and weak when elongate. Stem and flower stalks minutely
covered with short, thick, often spreading or backward hairs
(those among the flowers often glandular), rarely hairless.
Leaves: opposite, hairless, or short-hairy like the stem,
entire or nearly so, the lower ones small, stalked, spatulate
to round, commonly soon withered, the others narrow and
becoming stalkless, narrowly elliptic or oblong, up to 4 cm
long and 12 mm wide. Upper leaves often in whorls of 3-5.
Flowers: the lower ones mostly solitary in the axils, the
upper more often clustered, long-stalked. Calyx 3-6 mm
long, the 5 narrow, slenderly pointed lobes as long as the
tube. Corolla blue, the upper lip white or whitish, 4-7 mm
long, with 2 broadly rounded lobes, the lower lip with 2
narrower lobes, the tube abruptly bent near the base,
forming an oblique angle with the calyx and strongly
humped on the upper side at the bend.
Flowering time: March-July.
Fruits: capsules, ellipsoid, shorter than the calyx, 3-5
mm long, 2-3.5 mm wide. The 2-4 seeds ellipsoid, about 2
mm long, flattened, with thickened, inrolled edges.
Plains, hills, slopes and open woods, in w. and c. parts of
MT. Also from AK to s. CA, CO and MI.
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