Autonyms (not in current use), synonyms and invalid designations:

(≡ homotypic synonym, = heterotypic synonym, - autonym, I invalid designation)

• (=) Guachamaca toxicaria Grosourdy
• Basionym: Tabernaemontana flavescens Willd.

Common names:

• guachamacá  (Source: F VenGuay) - Spanish

Economic Importance:

• Vertebrate poisons: mammals;

Distributional Range:

Native

Southern America

• NORTHERN SOUTH AMERICA: French Guiana, Guyana, Suriname, Venezuela [Amazonas, Delta Amacuro]
• BRAZIL: Brazil [Acre, Amazonas, Bahia, Pará]
• WESTERN SOUTH AMERICA: Colombia, [Meta, Vaupés] Ecuador, [Napo, Sucumbíos] Peru [Loreto, Ucayali]

References:

1. Boggan, J. et al. 1997. Checklist of the plants of the Guianas, ed. 2
2. Brako, L. & J. L. Zarucchi. 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45
3. Forzza, R. C. et al., coord. Lista de espécies da flora do Brasil (on-line resource).
4. Funk, V. et al. 2007. Checklist of the plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contr. U.S. Natl. Herb. 55:1-584.
5. Jørgensen, P. M. & S. León-Yánez, eds. 1999. Catalogue of the vascular plants of Ecuador. Monogr. Syst. Bot. Missouri Bot. Gard. 75
6. Steyermark, J. A. et al., eds. 1995-. Flora of the Venezuelan Guayana. Note: Missouri Botanical Garden & Timber Press

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://agb.amvmt.lt/gringlobal/taxonomydetail.aspx?id=418377. Accessed 19 birželio 2026.