Plural of cyathium; specialized flower-like structures found in spurge plants where small male and female flowers are clustered together.
From Latin 'cyathia', from Greek 'kyathos' (cup). These structures are called 'cyathia' because their cup-like shape resembles a drinking vessel.
Cyaathia are nature's deceptive packaging—from a distance, a spurge plant's cluster of cyaathia looks like one flower, fooling pollinators into visiting multiple times while thinking they've found a single bloom.
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