alys·sum /əˈlɪsəm/
十字花科的一年生植物
A·lys·sum n. Bot. A genus of cruciferous plants; madwort. The sweet alyssum (Alyssum maritimum), cultivated for bouquets, bears small, white, sweet-scented flowers.
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alyssum
n 1: any garden plant of the genus Alyssum having clusters of
small yellow or white flowers [syn: madwort]
2: a genus of the family Cruciferae [syn: genus Alyssum]