Fevillea cordifolia, also known as javillo and antidote caccoon, is a climbing vine of up to 20 m of the family Cucurbitaceae and occurring in South and Central America in Bolivia, Brazil, Colombia, Costa Rica, Ecuador, Nicaragua, Panama, Peru and Venezuela.

[2] Its leaves are 8-16 by 5.5–12 cm, entire, ovate-triangular or with 3-5 lobes, with axillary tendrils.

The pistillate flowers produce a globose ovary with 3 carpels, and 3 styles more or less united.

[3] Seeds, which contain the glucoside fevicordin, produce a fat with buttery texture, investigated in the 1980s as an internal combustion engine fuel by ethnobotanist James A. Duke.

In Costa Rica and Honduras the indigenous people use the seeds as a laxative and for treating ailments such as parasites, fever and stomach cramps, septicemia in farmyard animals, and diarrhea.