Family Amaranthaceae, which contains about 60 genera and more than 800 species of herbaceous plants and a few shrubs, trees, and vines, native to tropical America and Africa. Globe amaranth (
Gomphrena) and cockscomb (
Celosia) are cultivated as ornamentals. The large genus
Amaranthus contains the ornamentals love-lies-bleeding (
A. caudatus) and Joseph's-coat (
A. tricolor), as well as many weedy plants known as pigweed, especially
A. retroflexus. Some
Amaranthus species are
tumbleweeds, and some are potential high-protein grain crops.
For more information on amaranth family, visit Britannica.com.