buttonwood

The English word “buttonwood” has 3 meanings listed here.

noun

The mangrove tree (Conocarpus erectus, family Combretaceae) a tropical and subtropical species.
The American sycamore or American plane tree (Platanus occidentalis, family Platanaceae).
California sycamore or western sycamore (Platanus racemosa).

From button + wood.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.