Alstonia actinophylla, commonly known as northern milkwood, cape milkwood, cape cheesewood or white cheesewood, is a medium-sized species of tree in the dogbane family.

[1] The greenish-white 1 cm flowers occur in bunches at the ends of the branches, with flowering occurring mainly from August to October.

The stringy 15 cm long fruits are paired pods containing hairy black seeds.

[2] As well as in southern New Guinea, the species is found across tropical northern Australia in dry woodland habitats, rocky country, on the banks of watercourses and on the fringes of rainforest.

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