References

For Xanthium

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Löve, D., and P. Dansereau. 1959. Biosystematic studies on Xanthium: taxonomic appraisal and ecological status. Can. J. Bot. 37: 173-208. Google Scholar

Manzo, E., S. Nillies, D.G. Gutiérrez, J.L. Panero, C. Bräuchler, and S. Tomasello. 2024. Species delimitation in Xanthium sect. Acanthoxanthium (Heliantheae, Asteraceae) and the neglected species Xanthium argenteum. Taxon. Google Scholar

Millspaugh, C.F., and E.E. Sherff. 1919. Revision of the North American species of Xanthium. Field Mus. Nat. Hist. Bot. 4: 9-49. Google Scholar

Strother, J.L. 2006ee. Xanthium. In Flora of North America Editorial Committee. 2006b. Flora of North America north of Mexico. Volume 20, Magnoliophyta: Asteridae, part 6: Asteraceae, part 2. Oxford Univ. Press, New York, NY. 666 pp. Google Scholar

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