''Alstonia iwahigensis'' is a tree in the dogbane family

Apocynaceae Apocynaceae (, from '' Apocynum'', Greek for "dog-away") is a family of flowering plants that includes trees, shrubs, herbs, stem succulents, and vines, commonly known as the dogbane family, because some taxa were used as dog poison. Notable mem ...

Description

''Alstonia iwahigensis'' grows as a medium to large-sized tree up to tall, with a trunk diameter of up to . The bark is greyish, yellowish or dark brown. Its fragrant flowers feature a yellow or pinkish corolla.

Distribution and habitat

''Alstonia iwahigensis'' is native to

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

and

Palawan Palawan (, ), officially the Province of Palawan (; ), is an archipelagic province of the Philippines that is located in the region of Mimaropa. It is the largest province in the country in terms of total area of . The capital and largest c ...

. The species is found in forests and on hillsides from sea level to altitude.

References

iwahigensis Trees of Borneo Trees of the Philippines Plants described in 1912 Taxa named by Adolph Daniel Edward Elmer {{Apocynaceae-stub