Retrophyllum minus, the bois bouchon, is a species of conifer in the family Podocarpaceae. It is endemic to New Caledonia.
It is a sparsely branched small tree with a flared trunk which tapers towards the top and has rough bark.[1] It produces pear-shaped fruits that are dark-red when mature.[1]
The species occurs near rivers and lakes of the Plaine des Lakes in the south of Grande Terre.[1] It is a rheophyte (grows in running water), the only such conifer known.[2]
It is threatened by habitat loss to mining and wildfire. It is a protected species.[3]