Powell Amaranth

Powell Amaranth

Amaranthus powellii S. Wats.

Amaranthaceae (Pigweed Family)

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Amaranthus powellii S. Wats.; Palmer Amaranth: (Bayer Code: AMAPO; US Code AMPO2)

• Warm-season, aggressive annual weed, with upright pyramidal growth habit
• Similar to redroot pigweed in appearance, except:
  • Leaves are smooth, shiny on upper surface, and more pointed than redroot pigweed
  • Stems are not rough-textured or hairy
  • Has slightly longer terminal inflorescences without spiny bracts sticking out
  • Side branches of terminal panicles are longer than redroot pigweed
• Common in cultivated crops, roadsides, non-crop land
• Can readily hybridize with other pigweeds, resulting in weeds with varying pigweed/amaranth characteristics

(Posted January 15, 2019)

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