Fevillea cordifolia

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. This dioecious species produces a globose, green fruit some 12 cm in diameter, dehiscing along a line about 2 cm from its base. Its leaves are 8-16 by 5.5–12 cm, entire, ovate-triangular or with 3-5 lobes, with axillary tendrils. Lax panicles are 10–15 cm long. Flowers with campanulate calyx, 5-lobed. Corolla with 5 lobes, yellow, orange or pink. The flowers with 5 stamens which are free, and with recurved filaments. The pistillate flowers produce a globose ovary with 3 carpels, and 3 styles more or less united. Seeds are numerous, orbicular or elliptical, and compressed. Seeds, which contain the glucoside fevicordin, produce a fat with buttery texture, investigated in the 1980s as an internal combustion engine fuel by ethnobotanis......read more on Wikipedia.