Description originale
Rogers, D. J. & Appan, S. G. 1973. Manihot Manihotoides (Euphorbiaceae). Flora Neotropica Monograph, 13: 1-272.

 

Source de la synonymie
Funk, V., Hollowell, T., Berry, P., Kelloff, C. & Alexander, S. N. 2007. Checklist of the Plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contributions from the United States National Herbarium, 55: 1-580. [CD_REF = 740647] Manihot tristis subsp. saxicola (Lanj.) D.J.Rogers & Appan, 1973

 

Date de publication : Fl. Neotrop. Monogr., 13: 161, 163, fig. 71.D, 72.A-B. 1973 [22/06/1973].

Orthographe : Publié comme "maguireiana" orth. var., à corriger (ICN Melbourne).

Type : Venezuela, Bolívar, Rio Paragua, Isla el Casabe, c. 265 m, 21/04/1943, F. Cardona 530 (HT: VEN7014; IT: A00048429, US00096510).
Venezuela, Bolívar, Cerro Perro (haut Rio Paragua), 07/1943, F. Cardona 764 (PT: US).
Venezuela, Bolívar, vicinity of Urimán, 300 m, 30/04/1953, fleurs. Stem erect, 0,9 - 1,2 m tall, leaves membranaceous, dark green above, gray-silvery below, petals pink and white. J.A. Steyermark 75296 (PT: VEN85307).
Venezuela, Bolívar, 3 km E of Cano Azul, Hato La Vergarena, 470 m, 23/10/1954, fleurs. Shrub 1 - 1,5 m, flores pink.lined outside, pale pink within. J.J. Wurdack & N. Guppy 176 (PT: NY, US, VEN46431).