General:
Perennial herb from creeping rhizome; stems erect, 30-70 cm tall, branched above, often with short axillary sterile branches below, somewhat hairy, 4-angled; culinary herb.

Leaves:
All stem leaves; opposite, egg-shaped, 1-3 cm long, entire or nearly so, scattered hairy, minutely gland-dotted; stalks 3-5 mm long; gradually reduced toward the inflorescence.

Flowers:
Inflorescence of several, axillary and terminal, panicle-like flower clusters; bracts elliptic or diamond- to egg-shaped, 3-5 mm long, often purple-tipped; corollas tubular, white to red-purple, 4-7 mm long, 2-lipped, the upper lip nearly entire, the lower lip 3-lobed; calyces 1-2.5 mm long, gland-dotted, sparsely hairy, short-bristly within, 13-veined; calyx teeth 5, lance-triangular or nearly egg-shaped, nearly equal in length, shorter than tube, generally purplish.

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

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