Redroot Pigweed

Amaranthus retroflexus

  1. Annual with a red tap root and base of the plant; leaves nearly diamond shaped with a notched tip and protruding veins; non-showy flowers on the tops of the plant and crotch of the leaves.
  2. Hand pulling; patch tillage; mowing; herbicide control.
  3. Weeds of the Prairies
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Photos

Phil Westra, Colorado State University, Bugwood.org
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Phil Westra, Colorado State University, Bugwood.org
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Howard F. Schwartz, Colorado State University, Bugwood.org
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