FNA | Family List | FNA Vol. 4 | Amaranthaceae 3. Amaranthus Linnaeus, Sp. Pl. 2: 989. 1753; Gen. Pl., ed. 5, 427. 1754.Amaranth, pigweed [Greek amarantos, unfading, nonwithering] Sergei L. Mosyakin & Kenneth R. Robertson Acanthochiton Torrey; Acnida Linnaeus; Albersia Kunth; Amblogyna Rafinesque; Euxolus Rafinesque; Mengea Schauer; Sarratia Moquin-Tandon; Scleropus Schrader Herbs, usually annual, rarely perennial, monoecious (subg. Amaranthus and Albersia) or dioecious (subg. Acnida), glabrous or pubescent. Stems erect, ascending, decumbent, or prostrate, usually branched, occasionally simple or nearly so; without […]