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OAC-BIO Herbarium. University of Guelph, Canada. Year: 2012.   cc-by-nc-sa-3.0

Amaranthus retroflexus (redroot amaranth) is a species of annual herb in the family pigweed. It has a self-supporting growth form. It is associated with freshwater habitat. It is native to the contiguous United States. It has simple, broad leaves. It is a photoautotroph. Individuals can grow to 0.42 m. Reproduction is monoecious.

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EOL has data for 27 attributes, including:

Known occurrences, collected specimens and observations of redroot amaranth