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General:
Annual herb from a taproot; stems weak, climbing or prostrate, solitary, few branched, square, short-hairy on the angles, the hairs pointed downwards, 40-100 cm tall/long.
Leaves:
Basal leaves few, soon deciduous; stem leaves in whorls of 8 (sometimes 6), linear lanceolate to lanceolate, 1-4 (7) cm long, lowermost stalked, upper ones unstalked, entire, awn-tipped, 1-veined, bristly-hairy along the margins, bristly-hairy above, with hooked hairs, the hairs pointed backwards.
Flowers:
Inflorescence of 3-5, stalked, terminal flowers on branchlets in most leaf axils; corollas saucer-shaped, greenish-cream, 1-1.5 mm wide, 4-lobed; calyces obsolete.
Fruits:
Nutlets, 2, 1.5-3 mm long, smooth or with numerous, short, hooked hairs.
Source: The Illustrated Flora of British Columbia
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