Xanthium strumarium Linnaeus [family COMPOSITAE], Sp. Pl., 2: 987. 1753
Xanthium americanum Walter [family COMPOSITAE]
Xanthium chasei Fernald [family COMPOSITAE]
Xanthium chinense Miller [family COMPOSITAE]
Xanthium curvescens Millspaugh & Sherff [family COMPOSITAE]
Xanthium cylindricum Millspaugh & Fernald [family COMPOSITAE]
Xanthium echinatum Murray [family COMPOSITAE]
Xanthium echinellum Greene ex Rydberg [family COMPOSITAE]
Xanthium globosum C. Schull [family COMPOSITAE]
Xanthium inflexum Mackenzie & Bush [family COMPOSITAE]
Xanthium italicum Moretti [family COMPOSITAE]
Xanthium orientale Linnaeus [family COMPOSITAE]
Xanthium oviforme Wallroth [family COMPOSITAE]
Xanthium pensylvanicum Wallroth [family COMPOSITAE]
Xanthium speciosum Kearney [family COMPOSITAE]
Xanthium strumarium var. canadense (Miller) Torrey & A. Gray [family COMPOSITAE]
Xanthium strumarium var. glabratum (de Candolle) Cronquist [family COMPOSITAE]
Xanthium varians Greene [family COMPOSITAE]
Xanthium wootonii Cockerell [family COMPOSITAE]