Photographic image
Caulophyllum thalictroides (L.) Michx. (blue cohosh), flower2005 – 2012
Hagstrom, John
Photographic image
Caulophyllum thalictroides (L.) Michx. (blue cohosh), flower, leaves2005 – 2012
Hagstrom, John
Drawing
Spring Wild Flowers of the Forest Floor At The Morton Arboretum: A Key To Identification, page 41944
Watts, May Theilgaard