General:
Perennial herb from a creeping rhizome; stems reclining to ascending, stout, 10-60 cm long, short-hairy, often red, 4-angled.

Leaves:
Opposite, narrowly egg-shaped to elliptic, 1-2 cm long, 0.6-1 cm wide, tips rounded, bases somewhat wedge-shaped, minutely-hairy, gland-dotted, margins somewhat toothed, 1-6 teeth on each side; short-stalked; uppermost leaves reduced, more or less unstalked.

Flowers:
Inflorescence of many separated, axillary flower clusters, subtended by leaf-like bracts barely longer than flowers; corollas tubular, violet to lavender, 5-8 mm long, 4-lobed, the lobes nearly equal, hairy outside, the tube somewhat swollen on one side below the mouth; calyces cone- to bell-shaped, 2.5-4 mm long, short-hairy and hairy within, weakly 2-lipped, the lower 2 teeth narrower than upper 3.

Fruits:
Nutlets, 4 clustered together, egg-shaped.

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