We found 2 definitions of alstonia from 2 different sources.
Noun |
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alstonia - genus of evergreen trees or shrubs with white funnel-shaped flowers and milky sap; tropical Africa to southeastern Asia and Polynesia | ||
genus Alstonia | ||
dicot genus, magnoliopsid genus genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination | ||
apocynaceae, dogbane family, family apocynaceae chiefly tropical trees or shrubs or herbs having milky juice and often showy flowers; many are sources of drugs |