Nomenclature: wfo-0000079665
Cirsium nidulum Fl. Rocky Mts. : 1011 (1917)
Nomenclatural References
- literature : Fl. Rocky Mts. 1011. 1917 BHL link from IPNI metadata.
- person : Per Axel Rydberg (1860-1931) Based on occurrence of standard abbreviation 'Rydb.' in the authors string.
- database : IPNI record: 195740-1
- database : The Plant List version 1.0, record: gcc-36238
- database : The Plant List version 1.1, record: gcc-36238