- cyathium
[cyathium 词源字典]
- "The characteristic inflorescence of the spurges, resembling a single flower. It consists of a cup-shaped involucre of fused bracts enclosing several greatly reduced male flowers and a single female flower", Late 19th century: modern Latin, from Greek kuathion, diminutive of kuathos 'cup'.[cyathium etymology, cyathium origin, 英语词源]