Amaranthus spinosus Linnaeus. Spiny Amaranth, Quelite Espinoso. Phen: Jul-Oct. Hab: Fields, gardens, roadsides, barnyards, pastures. Dist: Native of tropical America.

Origin/Endemic status: Native

Synonymy: = Ar, Bah, C, F, FNA4, G, GrPl, Il, K1, K3, K4, Mex, Mo2, NcTx, NE, NY, Ok, Pa, RAB, S, S13, Tat, Tn, Tx, Va, W, WH3, Bayón (2015), Costea & Tardif (2003b)

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACU
• Eastern Mountains and Piedmont: FACU
• Great Plains: FACU
• Midwest: FACU
• Northcentral & Northeast: FACU

Heliophily: 9