The Knobbly fig (Ficus sansibarica) is an African species of cauliflorous fig. It is named after Zanzibar, where Franz Stuhlmann discovered it in 1889. They regularly reach 10 m, but may grow up to 40 m tall as forest stranglers. It occurs in the tropics and subtropics from coastal elevations to 900 m above sea level. They prefer deep sandy soil and often start life as a strangler. The pollinating wasp is Courtella armata.