This member of the Dioscoreaceae family was given this name by Reinhard Gustav Paul Knuth in 1850. It is found in Bolivia, Ecuador, Mexico and Venezuela, growing in a well drained but rich soil with quite some water and lots of sun. The caudex can grow to five centimetres in diameter, the entire plant to four metres in height. The flowers are white. Dioscorea is named after Pedianos Dioscorides, a Greek physician if the 1st century A.D. The species name means 'of two different (and, usually, distinct) colours', and the leaves can be that. Photo of a old leaf by Emiliano Villanueva López.

