Torke BM, Schaal BA (2008). "Molecular phylogenetics of the species-rich neotropical genus Swartzia (Leguminosae, Papilionoideae) and related genera of the swartzioid clade". Am J Bot. 95 (2): 215–228. doi:10.3732/ajb.95.2.215. PMID21632346.
ildis.org
"ILDIS LegumeWeb entry for Cyathostegia". International Legume Database & Information Service. Cardiff School of Computer Science & Informatics. Retrieved 31 January 2014.
Torke BM, Schaal BA (2008). "Molecular phylogenetics of the species-rich neotropical genus Swartzia (Leguminosae, Papilionoideae) and related genera of the swartzioid clade". Am J Bot. 95 (2): 215–228. doi:10.3732/ajb.95.2.215. PMID21632346.