This member of the Cucurbitaceae family was given this name by Denis M. Kearns in 1994. It is found in the western part of Mexico down into Guatemala, growing in a well drained soil with some to lots of water water and quite some sun. The caudex can grow to 40 or even 50 centimetres in diameter while the vines can reach four metres. The flowers are white to pale yellow.
The genera name after Pierre LeMoyne Sieur D'Iberville, 17th century explorer and settler in America. The species name means 'thickest in the middle'. That must be the fruit. I got quite some friends fitting that description.... Ibervillea is dioecious, there are separate male and female plants. The flowers by? Photo of the fruits by Thomas Van Devender, Swbiodiversity.org.

