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General:
Annual herb from a taproot; stems erect, freely branching from the base, 15-80 cm tall.
Leaves:
Lower leaves opposite, upper leaves alternate, stalked or stalkless, lanceolate to egg-shaped or diamond-shaped, 2-6 cm long, squared-off to wedge-shaped at the base, margins smooth to slightly toothed, covered with a white mealy substance and generally greyish-green overall, sometimes nearly glabrous on upper surfaces.
Flowers:
Inflorescence of axillary spikes, greenish, numerous; pistillate bracteoles fused, broadest above the middle, 4-10 mm long, firmly enclosing the fruit, the margins green and deeply toothed.
Fruits:
Membranous pericarps; seeds erect, about 1.5 mm long.
Source: The Illustrated Flora of British Columbia
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