This incredible fruit, like other Willughbeia, is the product of giant lianas in the rainforests of Borneo. The fruit differs from other species in the genus in being brown rather than orange when mature, up to nearly 1 kg (2 lb.) in weight and larger than a large grapefruit. Inside is a marvel of nature, a creamy white ball of pulp the size of a navel orange. The flesh is extremely sweet with a taste that can only be compared to “sweet tart” candies.
The flavor is really hard to describe other than this. It is a delicious intoxicating fruit that would certainly have an audience and true potential as a commercial crop, but is still virtually unknown and apparently not cultivated anywhere. The trickle of fruits that make it to village markets in Borneo are all harvested in the wild. The vines would do extremely well with proper and large enough support trellises, fruiting seems to take place throughout the year and the plants are highly productive.