*Xanthium spinosum Linnaeus. Spiny Cocklebur. Phen: Jul-Nov. Hab: Fields, disturbed ground. Dist: Apparently native of South America.
Origin/Endemic status: South America
Synonymy: = GrPl, Il, Mi, Mo2, NcTx, NE, NY, Pa, RAB, Tat, Tx, Va, WV; = Acanthoxanthium spinosum (L.) Fourr. – S; = Xanthium spinosum L. var. spinosum – Löve & Dansereau (1959); < Xanthium spinosum L. – C, FNA21, K1, K3, K4, SE1; > Xanthium spinosum L. var. inerme Bel – F; > Xanthium spinosum L. var. spinosum – F
Wetland Indicator Status:
Heliophily: 8
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