The scientific genus name for chestnut trees, including sweet chestnuts and other species found across temperate regions.
From Latin 'castanea,' itself borrowed from Greek 'kastanon,' with ultimate origins possibly in Semitic languages or Asia Minor.
When Carl Linnaeus named the chestnut genus 'Castanea,' he was just using the Latin word people had used for thousands of years—Linnaean naming preserved ancient knowledge in scientific form.
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