This member of the Dioscoreaceae family was described by Ferdinand Albin Pax in 1893. It is found in tropical Africa, Zanzibar and on Madagascar, growing in well drained or rich soil with some to lots of water and some sun. The bulbs can grow to six centimetres or more, the vines can grow to seven or even 25 meters. The flowers are greenish yellow. Bulbils of this species are poisonous. Dioscorea is named after Pedianos Dioscorides, a Greek physician if the 1st century A.D. The species name sansibarensis after Zanzibar, now called Unguja. Photo by Panos & Stavros. New growth on air-bulbs by Enrico Santimaria.

