System Message: Staging server: Data release: 2023-12
Nomenclature: wfo-0000012605
![Asa Gray (1810-1888) Asa Gray (1810-1888)](http://commons.wikimedia.org/wiki/Special:FilePath/Asa%20Gray%20by%20John%20Whipple%2C%201864.jpg)
Cirsium clavatum var. americanum Sida 21(1): 211 (2004)
Nomenclatural References
- literature : Sida 21(1): 211. 2004 [20 Aug 2004] BHL link from IPNI metadata.
- person : Asa Gray (1810-1888) Based on occurrence of standard abbreviation 'A.Gray' in the authors string.
- person : David John Keil (b.1946) Based on occurrence of standard abbreviation 'D.J.Keil' in the authors string.
- database : IPNI record: 60436276-2
- database : The Plant List v1.1 record gcc-1122
- database : The Plant List version 1.0, record: gcc-1122
Taxonomy: Accepted in 2019-03 classification
Occurs in: 2018-07 : 2019-03 : 2019-05 : 2021-12 : 2022-06 : 2022-12 : 2023-06 : 2023-12 : 2024-06 : 9999-01Placement: > Cirsium > Cirsium clavatum > Cirsium clavatum var. americanum
Synonyms
- Cirsium modestum
- Carduus laterifolius
- Carduus spathulatus
- Cnicus carlinoides var. americanus
- Cirsium spathulifolium
- Cnicus americanus
- Cirsium americanum var. americanum
- Cirsium centaureae
- Cirsium americanum
- Cirsium scapanolepis
- Cirsium griseum
- Carduus centaureae
- Cirsium laterifolium