Cereus tweedyanus(Britton & Rose) Werdermann ex Backeberg (1931)
Pilocereus tweedyanus(Britton & Rose) Backeberg in Backeberg & Knuth (1936)
Pilosocereus colombianus is a species of Pilosocereus found in Valle del Cauca Department, Colombia and Azuay, El Oro, Guayas, Loja, Manabí,
and Santa Elena Provinces of Ecuador[1][2]
^FRANCK, ALAN R.; BARRIOS, DUNIEL; CAMPBELL, KERON C. ST. E.; LANGE, JAMES; PEGUERO, BRÍGIDO; SANTIAGO-VALENTÍN, EUGENIO; RIGERSZKI, ZOLTÁN; HAAKONSSON, JANE; GANN, GEORGE D.; CINEA, WILLIAM; HOWE, NATALIE M. M.; ST. JOHN, JAMES; MORENO, JUAN SEBASTIÁN; CLARK, CYNTHIA A. (2019-07-23). "Revision of Pilosocereus (Cactaceae) in the Caribbean and northern Andean region". Phytotaxa. 411 (3). Magnolia Press: 129–182. doi:10.11646/phytotaxa.411.3.1. ISSN1179-3163.