General:
Annual herb from a taproot; stems erect, solitary, much branched, 10-50 cm tall.
Leaves:
Stem leaves usually triangular with arrowhead-like lobes, entire except sometimes with a few teeth at the base, greenish on upper surfaces, usually greyish-mealy below, stalked, 1-4 cm long, rounded to pointed.
Flowers:
Inflorescence of dense clusters in large terminal and smaller lateral spikes, densely mealy, without stalks.
Fruits:
Thin, membranous envelopes, 1 mm wide; seeds obtusely margined, slightly roughened.
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