Polystemma canisferum McDonnell & Fishbein species accepted

Polystemma cordifolium (A.Gray) McDonnell & Fishbein species accepted

Polystemma mirandae Lozada-Pérez species accepted

Polystemma scopulorum Brandegee species accepted

Polystemma fishbeiniana V.W.Steinm. & W.D.Stevens species accepted

Polystemma guatemalense (Schltr.) W.D.Stevens species accepted

Polystemma cordatum (Brandegee) L.O.Alvarado species accepted

Polystemma calcicola (Greenm.) Morillo species accepted

Polystemma pilosum (Benth.) Morillo species accepted

Polystemma stevensii G.M.Hern.-Barón, Trujillo-Juárez & V.W.Steinm. species accepted

Polystemma quercetorum (Standl.) Morillo species accepted

Polystemma magallanesii (E.J.Lott) Morillo species accepted

Polystemma leopardum L.O.Alvarado, García-Mend., D.Sandoval & Lozada-Pérez species accepted

Polystemma luridum (Decne.) C.Cerv., Flores Olv. & L.O.Alvarado species accepted

Polystemma fuscum (Decne.) C.Cerv., S.Arias & L.O.Alvarado species accepted

Polystemma galindoi Pío-León, L.O.Alvarado & S.Islas species accepted

Polystemma atreyui Pío-León, L.O.Alvarado & S.Islas species accepted

Polystemma horconesense C.D.Sánchez, L.O.Alvarado & S.Islas species accepted

Polystemma cervantesii (Lozada-Pérez & L.O.Alvarado) L.O.Alvarado & S.Islas species accepted

Polystemma purpusii (Brandegee) L.O.Alvarado & S.Islas species accepted

Polystemma adenocardium (Standl.) L.O.Alvarado & S.Islas species accepted

Polystemma petiolare (A.Gray) L.O.Alvarado & S.Islas species accepted

Polystemma angustilobum (B.L.Rob. & Greenm.) L.O.Alvarado & S.Islas species accepted

Polystemma tristiflorum (Standl.) L.O.Alvarado & S.Islas species accepted

Polystemma umbellatum (Brandegee) L.O.Alvarado & S.Islas species accepted

Polystemma fruticosum (Brandegee) L.O.Alvarado & S.Islas species accepted

Polystemma pueblense (Brandegee) L.O.Alvarado & S.Islas species accepted