Toxicological trivia fron October 19, 2009: The Cardenolides identified in Thevetia peruviana are distributed throughout the plant but not uniformly, reaching the highest concentration in:
a) Seeds;
b) Leaves;
c) Fruit.

Answer a. Cardenolides concentrations are: 4.8% seeds, leaves 0.070%, 0.045% fruit sap and 0.036%. Read more in Spanish’s monographs: Thevetia peruviana