US Forest Service, 2013. Pacific Island Ecosystems at Risk (PIER). Online resource Document reference US Forest Service, 2013. Medicago polymorpha L.. Pacific Island Ecosystems at Risk (PIER). Online resourceWeb http://www.hear.org/pier/species/medicago_polymorpha.htmCitation key US Forest Service, 2013Datasheets Bur clover (Medicago polymorpha)
