New species named Pinanga subterranea as Kew botanists admit they have no idea how its flowers are pollinated

A new-to-science palm species has been discovered in Borneo with the remarkable ability to flower and fruit underground. How the rare palm – named Pinanga subterranea – has survived is a mystery, as most plants have evolved to develop their flowers and fruit above ground to facilitate pollination and the dispersal of seeds.

“Pinanga subterranea is the only known species of palm to flower and fruit below ground,” said Dr Benedikt Kuhnhäuser, a future leader fellow at Royal Botanic Gardens, Kew, who was part of the research team that collected specimens and ascertained that it was a new species. “Flowering and fruiting below ground is mind-boggling and seemingly paradoxical because they appear to prevent pollination and dispersal. We now know bearded pigs eat and disperse Pinanga subterranea’s fruits, but we’ve yet to find out how and by whom the flowers are pollinated.”