Pigweed (Amaranthus spp) (IMAGE)

Cambridge University Press

Pigweed (Amaranthus spp)

Caption

Many pigweed species (Amaranthus spp.) have been found as contaminants in commercially available bird feed mixes. Pigweeds were found at an average of 384 seeds kg-1 but reached levels as high as 6,525 seeds kg-1. This photo shows a variety of pigweed species that germinated following extraction from commercial bird feed mixes. Photo credit: Mindy Ward of Penton Media

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Photo credit: Mindy Ward of Penton Media

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