SZLACHETKO, D. L., KOLANOWSKA, M., NOWAK, S., VIEIRA-URIBE, S., BOCK, I., CLEEF, A. Materials to the Orchid Flora of Colombia. Volume 1., Cypripediaceae, Orchidaceae - Orchidoideae, Spiranthoideae – Goodyereae. Oberreifenberg: Koeltz Scientific Books, 2017. ISBN 978-3-946583-11-0. Dostupné z: https://www.nhbs.com/materials-to-the-orchid-flora-of-colombia-volume-1-cypripediaceae-orchidaceae-orchidoideae-spiranthoideae-goodyereae-book