Plural form of eucalyptus, referring to multiple tall Australian trees known for their aromatic leaves and fast growth.
From Greek 'eu' (well) + 'kalyptos' (covered), referring to the plant's unopened flower bud that covers the flower parts. The term was coined in the 18th century by botanists describing these Australian trees.
Eucalyptuses grow so fast they can shoot up 6 feet in a single year, and koalas eat almost nothing else despite eucalyptus leaves being toxic to most animals—their special gut bacteria break down the poison!
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