External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:260869-1
- Publication
- Contributions from the United States National Herbarium. Smithsonian Institution
- Collation
- 11: 551
- Family as entered in IPNI
- Asteraceae
Original Data
- Remarks
- Am. bor
Links
- Duplicate citation of
- Xanthium oligacanthum Piper, Contr. U.S. Natl. Herb. 11: 551 (1906).