Carduus diffusus A.Heller

, Muhlenbergia 1: 6 (1900). BHL
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:45517-2
Publication
Muhlenbergia; a Journal of Botany. Lancaster, PA, and Los Gatos, CA
Collation
1: 6
Family as entered in IPNI
Asteraceae

Links

Nomenclatural link
Cnicus rothrockii var. diffusus Eastw., Proc. Calif. Acad. Sci. ser. 2, 6: 303 (1896).
Same citation as
Carduus diffusus A.Heller, Muhlenbergia 1(1): 6 (1900).