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Redroot pigweed (Amaranthus retroflexus) flowers are green and form terminal and axillary panicle like spikes.

Redroot pigweed (Amaranthus retroflexus)

Flowers are polygamous, with 3 stiff spiny bracts 4 to 6 mm long.

Redroot pigweed (Amaranthus retroflexus)


Redroot pigweed (Amaranthus retroflexus)

Redroot pigweed (Amaranthus retroflexus)

When under stress, or constantly mowed to a low height, pigweed can flower at a very small size.

Redroot pigweed (Amaranthus retroflexus)



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