General:
Annual herb from a taproot, strong-scented; stems mostly branching, 5-25 cm tall, 4-angled, bristly-hairy.

Leaves:
Opposite, linear or narrowly oblong, to 2 cm long, entire, minutely-hairy, margins often stiff-hairy; unstalked or nearly so.

Flowers:
Inflorescence of leafy axillary flower clusters, the upper crowded to form a spike; corollas tubular, blue, 2-lipped, to 10 mm long; calyces tubular, bulging on lower side near base, 5 mm long, 13-ribbed, hairy in throat, upper 3 teeth about the length of lower 2, the teeth awl-tipped; fertile stamens 2.

Fruits:
Nutlets, 4 clustered together, egg-shaped, net-veined, glaucous, sticky when moistened.

Source:  The Illustrated Flora of British Columbia

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration Source:  The Illustrated Flora of British Columbia