An alternate scientific or taxonomic name for the tonka tree or the coumarin-containing bean it produces.
From Tupi cumaru with Latin feminine ending -a, creating a botanical Latin scientific name form for the tonka tree or its product.
The tonka tree has been known by so many scientific names throughout history—coumarouna, Dipteryx odorata, and several others—reflecting how European scientists kept renaming plants discovered in the New World!
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