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Snapshots of the taxonomy

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As classified in WFO snapshot

June 2023

Warning: older classification

species

Xanthium calvum Millsp. & Sherff

This species name was first published in Publ. Field Columb. Mus., Bot. Ser. 4: 35, pl. 12 (1919)  

This species name has been reclassified since this snapshot. Its current preferred usage is a synonym .