Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Amaranthus blitoides, commonly called mat amaranth, prostrate pigweed, procumbent pigweed, prostrate amaranth, or matweed, is a glabrous annual plants species. It 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. Some authorities list it as an invasive species.

Plant type

Annual herb

Plant communities

Weed (disturbed places), Wetland-Riparian

Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 17 likely

Confirmed Likely

Garden Webworm Moth

Achyra rantalis

Ipsilon Dart

Agrotis ipsilon

The Nutmeg

Anarta trifolii

Common Gray

Anavitrinella pampinaria