Home » Plants » Amaranthus blitoides

Mat Amaranth (Amaranthus blitoides S. Watson)

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

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Range - Expand

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.

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.