This is a solitary palm native to the islands of Vanuatu in the South Pacific, where it grows in humid tropical forests, often on steep slopes and in sheltered valley environments. It develops a slender, upright trunk marked by distinct leaf scars and supports an open crown without a crownshaft. The leaves are pinnate with broad, somewhat irregularly arranged leaflets that give the crown a slightly untamed, natural appearance. Its inflorescences emerge among the leaves and produce notably large, heavy fruits with a thick mesocarp, a defining characteristic reflected in the species name. These fruits are relatively large compared to the size of the palm and are likely adapted for limited dispersal in its island habitat. This species is extremely rare in cultivation and remains poorly studied, with much of its biology inferred from limited field observations. Historically, it has been treated as synonymous with Pelagodoxa henryana, though modern classifications such as Kew Gardens POWO recognize it as a distinct species, primarily based on geographic separation and morphological differences.