Simsia annectens S. F. Blake species accepted

Simsia benziorum (B. L. Turner) E. E. Schill. & Panero species accepted

Simsia bicentenarialis Rzed. & Calderón species accepted

Simsia calva (A. Gray & Engelm.) A. Gray species accepted

Simsia chaseae (Millsp.) S. F. Blake species accepted

Simsia cronquistii H. Rob. & Brettell species accepted

Simsia dombeyana DC. species accepted

Simsia eurylepis S. F. Blake species accepted

Simsia foetida (Cav.) S. F. Blake species accepted

Simsia fruticulosa (Spreng.) S. F. Blake species accepted

Simsia ghiesbreghtii (A. Gray) S. F. Blake species accepted

Simsia hintonii H. Rob. & Brettell species accepted

Simsia holwayi S. F. Blake species accepted

Simsia jamaicensis S. F. Blake species accepted

Simsia molinae H. Rob. & Brettell species accepted

Simsia ovata (A. Gray) E. E. Schill. & Panero species accepted

Simsia pastoensis Triana species accepted

Simsia rhombifolia (B. L. Rob. & Greenm.) E. E. Schill. & Panero species accepted

Simsia sanguinea A. Gray species accepted

Simsia santarosensis D. M. Spooner species accepted

Simsia spooneri Panero & E. E. Schill. species accepted

Simsia steyermarkii H. Rob. & Brettell species accepted

Simsia subsetosa H. Rob. & Brettell species accepted

Simsia sylvicola Panero & E. E. Schill. species accepted

Simsia tenuis (Fernald) S. F. Blake species accepted

Simsia villasenorii D. M. Spooner species accepted

Simsia lagasceiformis DC. species accepted

Simsia setosa S. F. Blake species accepted

Simsia amplexicaulis (Cav.) Pers. species accepted

Simsia lupo Al. Rodr. species accepted