Author:Ronald R. Weedon Contents 1 Affiliation 1.1 Institution 1.2 Location 2 Treatments Affiliation Affiliation information has been provided by Volume 19-20-21. Institution Chadron State College Location Chadron, NebraskaTreatments BBidens Bidens amplissima Bidens aristosa Bidens aurea Bidens beckii Bidens bidentoides Bidens bigelovii Bidens bipinnata Bidens cernua B cont.Bidens connata Bidens discoidea Bidens eatonii Bidens frondosa Bidens heterodoxa Bidens heterosperma Bidens hyperborea Bidens laevis Bidens lemmonii B cont.Bidens leptocephala Bidens mitis Bidens pilosa Bidens polylepis Bidens tenuisecta Bidens trichosperma Bidens tripartita Bidens vulgata