Synonyms
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.