Castilla ulei, called caucho negro in Spanish or amora-vermelha-da-Amazônia in Portuguese (meaning Amazonian red mulberry), is a tree in the family Moraceae, native to South America, specifically in the Amazon rainforest.
Latex obtained from the trunk of this tree is used locally to make rubber.
See also Castilla elastica Hevea brasiliensis Ericameria nauseosa Landolphia dawei Landolphia hirsuta Landolphia owariensis Parthenium argentatum Taraxacum kok-saghyz
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