Ephippiandra masoalensis
Ephippiandra masoalensis is a species of flowering plant endemic to the Masoala Peninsula of eastern Madagascar. Description
Ephippiandra masoalensis is small tree, growing up to five meters tall. Range and habitat
The species is known from a single population in Masoala National Park on the Masoala Peninsula of eastern Madgagascar, overhanging the Antalavia River at 380 meters elevation. It grows in humid tropical evergreen lowland forest on lateritic soil. Conservation and threats
The species sole known population is in Masoala National Park, which is considered to be well-protected. The larger Madagascar lowland forests ecoregion is threatened by deforestation, shifting agriculture, and illegal logging and wood harvesting, but it isn't known whether these threats to the ecoregion also pose a threat to this species. References

masoalensis
Endemic flora of Madagascar
Flora of the Madagascar lowland forests