General:
Perennial herb from a stout rhizome or branched stem-base with fibrous roots; stems ascending to erect, solitary, simple, smooth except hairy at the nodes, 15-70 cm tall.

Leaves:
Basal leaves spoon-shaped or pinnately cleft with 1-2 pairs of lateral segments up to 3 cm long and 1.5 cm wide, enlarged terminal segment up to 8 cm long and 4 cm wide, leaves stalked; stem leaves few, smaller, opposite, entire or slightly toothed, 2-4 pairs, short-stalked.

Flowers:
Inflorescence a compact, flat-topped cluster with usually male/female flowers; corollas white or pink, 5-9 mm long, lobed, the lobes 1/2 as long as the tube; calyces with 12-18 feathery segments; stamens well exserted.

Fruits:
Achenes, lanceolate to more oblong or linear, 5-6 mm long, 1-2 mm wide, 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

Synonyms and Alternate Names:
Valeriana sitchensis subsp. scouleri (Rydb.) F.G. Mey.
Valeriana sitchensis var. scouleri (Rydb.) M.E. Jones