Compositae source details
(1901). Proc. Iowa Acad. Sci. 8
326462
1901
Publication
Date
action
by
Cnicus iowensis Pammel accepted as Cirsium altissimum (L.) Hill (original description)
Cnicus iowensis var. crattyii Pammel accepted as Cirsium altissimum (L.) Hill (original description)
Cnicus nelsonii Pammel accepted as Cirsium canescens Nutt. (original description)
Cnicus iowensis var. crattyii Pammel accepted as Cirsium altissimum (L.) Hill (original description)
Cnicus nelsonii Pammel accepted as Cirsium canescens Nutt. (original description)
