Xanthium × shullii Widder

, Repert. Spec. Nov. Regni Veg. Beih. 20: 139 (1923).
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:290509-2
Publication
Repertorium Specierum Novarum Regni Vegetabilis. Centralblatt für Sammlung und Veroffentlichung von Einzeldiagnosen neuer Pflanzen. Beihefte. [Edited by Friedrich Fedde]. Berlin
Collation
20: 139
Family as entered in IPNI
Asteraceae

Remarks

Xanthium pungens X saccharatum

Links

Same citation as
Xanthium shullii Widder, Repert. Spec. Nov. Regni Veg. Beih. 20: 139, hybr. (1923).