Genus – Alstonia

Alstonia scholaris , Family-Apocynaceae , Common name-Rukattana රුක්අත්තන, eth mada, ඇත් මද , Origin-Native , Habit-Large tree , Ecology-RF, D, W ,Comment-Leaves in whorls, Reference-.

16-3-2p

Alstonia macrophylla , Family-Apocynaceae , Common name-Hawari nuga හවරි නුග , Origin-Introduced , Habit-Small tree , Ecology-Secondary forest ,Comment-considered a invasive species, Reference-.

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