Polystemma canisferum Mc Donnell & Fishbein species accepted

Polystemma cordifolium (A. Gray) Mc Donnell & Fishbein species accepted

Polystemma mirandae Lozada-Pérez species accepted

Polystemma scopulorum Brandegee species accepted

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

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

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