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Field Guide to Noxious and Other Selected Weeds of British Columbia

Redroot Pigweed (Amaranthus retroflexus)

  • course annual growing to 1 metre in height; leaves are long-stalked with prominent whitish veins; taproot is often pinkish to red; inconspicuous green flowers borne in spike-like clusters in leaf axils and at stem ends; stiff, spine-like bracts give the head a bristly appearance

  • one of the most common agricultural weeds; can produce over 100,000 seeds/plant

Prominent veins on seedling
Inconspicuous flowers with spine-like bracts

More information about redroot pigweed (Weeds BC)

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