General:
Stout perennial herb from a thick taproot; stems 50-120 cm tall, branching, glabrous, leafy with fibrous remains of leaf sheaths at the base.

Leaves:
Compound, mostly basal, divided into distinct toothed leaflets up to 5 cm long; stem leaves reduced but at least 1 fairly well-developed.

Flowers:
Inflorescence in small compound umbels with 7-14 compact heads; flowers white, rays of terminal umbels 15-40; involucral bracts lacking.

Fruits:
Oblong to elliptic, 4-5 mm long, glabrous, with narrowly winged ribs.

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:
Ligusticum caeruleimontanum H. St. John
Ligusticum leibergii J.M. Coult. & Rose