Definitions
1.NounAny tree of several species of the genus Alstonia, including
Alstonia macrophylla (also hard alstonia)
Alstonia muelleriana (also hard cheesewood)
Alstonia spatulata (also Siamese balsa)
Alstonia spectabilis (also hard cheesewood, milky yellowwood)
2.NounAlstonia macrophylla (also hard alstonia)
3.NounAlstonia muelleriana (also hard cheesewood)
4.NounAlstonia spatulata (also Siamese balsa)
5.NounAlstonia spectabilis (also hard cheesewood, milky yellowwood)