Thistle be a mess: Untangling the taxonomy of Cirsium (Cardueae: Compositae) in North America
Jennifer R. Ackerfield1,2,3* , David J. Keil4 , Wendy C. Hodgson5 , Mark P. Simmons1 , Shannon D. Fehlberg5 ,
and Vicki A. Funk3
1 Department of Biology, Colorado State University, Fort Collins, CO 80523‐1878, USA 2 Denver Botanic Gardens, 1007 York St. Denver, CO 80206, USA 3 Department of Botany, National Museum of Natural History, Smithsonian Institution, 10th and Constitution Ave. Washington, DC 20560‐
0166, USA 4 Department of Biological Sciences, California Polytechnic State University, San Luis Obispo, CA 93407, USA 5 Desert Botanical Garden, Research, Conservation, and Collections, 1201 North Galvin Parkway Phoenix, AZ 85008, USA
. [J]. Journal of Systematics and Evolution, 2020, 58(6): 881-912.
Jennifer R. Ackerfield, David J. Keil, Wendy C. Hodgson, Mark P. Simmons, Shannon D. Fehlberg, and Vicki A. Funk. Thistle be a mess: Untangling the taxonomy of Cirsium (Cardueae: Compositae) in North America[J]. J Syst Evol, 2020, 58(6): 881-912.