Amaranthus blitoides

Amaranthus blitoides is also known as prostate amaranth, matweed, or mat amaranth. It is a glabrous annual. The plant usually grows up to 0.6 m, though it may grow up to 1 m (3 feet). It flowers in the summer to fall. It is believed to have been a native of the central or eastern United States, but it has naturalized in almost all of temperate North America. It has also naturalized in South America and Eurasia. By some authorities, it has been listed as an invasive species.
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