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Mat Amaranth (Amaranthus blitoides S. Watson)

Also known as prostrate pigweed, procumbent pigweed, prostrate amaranth, matweed.

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Range - Expand

LegendColor
Native
Expanded
Native or Not Present
Native or Expanded
Expanded or Not Present
Native or Expanded or Not Present

This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.

Although this plant occurs somewhere in each of these regions, it may only occur in a small part of some or all of them.

This species is native to the central US, and has expanded its range in all directions; it is now introduced in Mexico, Canada, and Alaska; we have yet to build these portions of its map. The southeastern populations are more transient and FSUS marks them as waifs.