(South Africa) Sideroxylon inermis, the white milkwood / (South Africa) Mimusops zeyheri, the Transvaal red milkwood.

plural of milkwood

Alstonia macrophylla (also hard alstonia) / Alstonia muelleriana (also hard cheesewood) / Alstonia spatulata (also Siamese balsa) / Alstonia spectabilis (also hard cheesewood, milky yellowwood)