As nouns the difference between upas and pupas
is that upas
is (usually countable|botany) a tree of the mulberry family, common in the forests of java and the neighboring islands, with poisonous secretions while pupas
Other Comparisons: What's the difference?
(usually countable, botany) A tree of the mulberry family, common in the forests of Java and the neighboring islands, with poisonous secretions.
(uncountable) A virulent poison used in Java and the adjacent islands for poisoning arrows derived from the tree.
(uncountable) A poison prepared from a climbing plant
* bohun upas
* upas tieute