Cirsium clavatum var. americanum Direct Children(s):
Cirsium clavatum var. americanum: References
Expert(s):
Expert:
David J. Keil
Notes:
Director, Curator, Robert F. Hoover Herbarium, Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA 93407, USA
Reference for:
Cirsium clavatum var. americanum
Source(s):
Source:
Asteraceae of North America Update
Acquired:
2010-05-13
Notes:
Update coordinated by the International Compositae Alliance (TICA) (http://www.compositae.org/) through the Smithsonian Institution in collaboration with the USDA National Plant Data Center
Reference for:
Cirsium clavatum var. americanum
Publication(s):
Cirsium clavatum var. americanum: Geographic Information