Seutera hirtella Pennell, 1919 species doubtful

Seutera monocephala Lapham ex A.Gray, 1856 species doubtful

Vincetoxicum salinarum (C.Wright ex Griseb.) Benth. & Hook.fil. ex B.D.Jacks. species synonym

Seutera auriculata Engelm. species doubtful

Seutera monocephala Lapham species homotypic synonym

Cynanchum angustifolium Pers. species synonym

Cynanchum palustre (Pursh) A.Heller species synonym

Lyonia palustris (Pursh) Small species synonym

Cymanchum angustifolium Pers. species synonym

Metastelma salinarum (C.Wright ex Griseb.) C.Wright ex Sauvalle species synonym

Rouliniella unifaria (Engelm. ex Torr.) Vail species proparte synonym

Ceropegia palustris Pursh species synonym

Cynanchum salinarum (C.Wright ex Griseb.) Alain species synonym

Funastrum angustifolium (Pers.) Liede & Meve species synonym

Cynanchum mulegense Wiggins species synonym

Seutera maritima Decne. species synonym

Seutera angustifolia (Pers.) Fishbein & W.D.Stevens species synonym

Metastelma palustre (Pursh) Schltr. species synonym

Pattalias palmeri S.Watson species accepted

Amphistelma salinarum C.Wright ex Griseb. species synonym

Seutera palmeri (S.Watson) Fishbein & W.D.Stevens species synonym

Seutera palmeri var. palmeri variety synonym

Seutera palustris (Pursh) Vail species synonym

Cynanchum palmeri (S.Watson) S.F.Blake species heterotypic synonym

Vincetoxicum salinarum (Griseb.) Benth. & Hook.f. species synonym

Vincetoxicum palustre (Pursh) A.Gray species synonym

Roulinia unifaria Engelm. ex Torr. species proparte synonym

Lyonia maritima Elliott species synonym

Macbridea maritima Raf. species synonym

Cynoctonum sessilifolium (Walter) J.St.-Hil. species synonym

Pattalias palustris (Pursh) Fishbein species accepted

Amphistelma salinarum C.Wright species homotypic synonym

Cynoctonum angustifolium (Pers.) Small species synonym

Roulinia unifaria Engelm. species homotypic synonym

Metastelma salinarum (C.Wright ex Griseb.) C.Wright species synonym