Branchlets tomentose. Leaves opposite; Inflorescence of lax axillary cymes, 7-18.5 cm long; Sepals narrow ovate, reflexed, 1.9-2.9 by 1-1.3 mm, 1.7-2.4 times as long as wide, apex acuminate, appressed velutinous. Stamens inserted at 1.8 mm from corolla base which is 0.5 of tube length; Ovary c. 0.9 mm long; Fruit (immature) linear, sparsely pubescent.
Asia-Tropical: Bismarck Archipelago (Bismarck Archipelago present); New Guinea present
Malesia: New Guinea (Bismarck Archipelago).
This species is close to P. lata from which it differs in its less pubescent leaves, more delicate inflorescence and thinner, less pubescent fruit.