Common Pigweed
Amaranthus spp.

Photo by Dr. John Meade, weed scientist emeritus
Rutgers NJAES Cooperative Extension
There are many species of pigweed and they are weed pests in several cropping systems. Smooth pigweed (Amaranthus hybridus), was the first triazine-resistant plant uncovered. Redroot pigweed (A. retroflexus), is probably our most common one.
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