code scanning institute
SI
scanning institute
Smithsonian Institute, Washington, D.C., U.S.A.
URL volume
https://archive.org/details/NorthAmericanwiIVWalc
species cited
Cirsium undulatum (Nutt.) Sprengel
basionym cited
Carduus undulatus Nutt.
ID species recognized
247179
species recognized
Cirsium undulatum (Nutt.) Sprengel
ID basionym recognized
196238
basionym recognized
Carduus undulatus Nutt.
Cirsium undulatum (Nutt.) Sprengel [1]
 
Compositae - Cichorioideae - Cardueae - Carduinae