Xanthium pungens var. denudatum Widder Repert. Spec. Nov. Regni Veg. Beih. 20: 69 (1923)

Nomenclatural References

• person : Felix Joseph Widder (1892-1974) Based on occurrence of standard abbreviation 'Widder' in the authors string.
• database : IPNI record: 269241-2
• database : The Plant List version 1.0, record: gcc-62831
• database : The Plant List version 1.1, record: gcc-62831