Lupinus strigulosus Gand. species synonym

Lupinus sabulosus A.Heller species synonym

Lupinus plebeius Greene ex C.F.Baker species synonym

Lupinus pipersmithii A.Heller species synonym

Lupinus micranthus var. microphyllus S.Watson variety synonym

Lupinus inamoenus Greene ex C.F.Baker species synonym

Lupinus bicolor var. tetraspermus C.P.Sm. variety synonym

Lupinus umbellatus Greene species synonym

Lupinus trifidus Torr. ex S.Watson species synonym

Lupinus micranthus var. bicolor (Lindl.) S.Watson variety synonym

Lupinus bicolor subsp. umbellatus (Greene) D.B.Dunn subspecies accepted

Lupinus bicolor subsp. tridentatus (Eastw. ex C.P.Sm.) D.B.Dunn subspecies accepted

Lupinus bicolor subsp. pipersmithii (A.Heller) D.B.Dunn subspecies accepted

Lupinus bicolor subsp. marginatus D.B.Dunn subspecies accepted

Lupinus hirsutulus Greene species synonym

Lupinus bicolor subsp. microphyllus (S.Watson) D.B.Dunn subspecies synonym

Lupinus bicolor subsp. bicolor subspecies accepted

Lupinus trifidus Torr. species homotypic synonym

Lupinus bicolor var. umbellatus (Greene) C.P.Sm. variety synonym

Lupinus bicolor var. tridentatus Eastw. ex C.P.Sm. variety synonym

Lupinus bicolor var. pipersmithii (A.Heller) C.P.Sm. variety synonym

Lupinus bicolor var. microphyllus (S.Watson) C.P.Sm. variety synonym

Lupinus bicolor var. tridentalis (Eastw. ex C.P.Sm.) D.B.Dunn variety synonym

Lupinus bicolor var. tridentatus Eastw., 1923 variety homotypic synonym

Lupinus plebeius Greene species homotypic synonym

Lupinus inamoenus Greene species homotypic synonym