amaranthus spinosus

Amaranthus spinosus, commonly known as the spiny amaranth, spiny pigweed, prickly amaranth or thorny amaranth, is a plant is native to the tropical Americas, but is present on most continents as an introduced species and sometimes a noxious weed. It can be a serious weed of rice cultivation in Asia.

In Khmer language, it is called pti banlar and in Vietnamese giền and its ash was historically used as a grey cloth dye.

Like several related species, A. spinosus is a valued food plant in Africa. It ...