Synonyms
Lathyrus polymorphus subsp. polymorphus var. hapemanii Unknown author
Lathyrus hapemanii A.Nelson
Lathyrus polymorphus var. hapemanii (A.Nelson) C.L.Hitchc.
Vicia stipulacea Pursh
Orobus polymorphus (Nutt.) Alef.
Lathyrus ornatus var. flavescens Rydb.
Lathyrus ornatus Nutt.
Lathyrus decaphyllus var. minor Hook. & Arn.