noun
gamopetalous corolla; sympetalous corolla
Botanical term for a corolla with petals fused together, as in morning glories or petunias.
アサガオの花は合弁花冠の代表例です。
The morning glory flower is a typical example of a gamopetalous corolla.
Refers to a corolla with separate petals (choripetalous), contrasting with the fused petals of 合弁花冠.
Compound of 合 (fused) + 弁 (petal) + 花冠 (corolla), directly describing the fused-petal structure.