It’s the only known member of the palm family to flower and fruit almost entirely below ground. Pinanga subterranea has been identified on the Southeast Asian island of Borneo by researchers at the Royal Botanic Gardens Kew (England). The plant grows at depths of between 6 and 30 cm. Fruits ovoid when ripe, 1.5–1.9 × 1.3–1.5 cm, white to bright red when ripe. Until now, only one other species of underground flower was known to scientists: the Rhizanthella, an orchid native to Australia.