- any of various plants belonging to the genus Alyssum, of the mustard family, having clusters of small yellow or white flowers.
- any of several related plants of the genus Aurinia, as A. saxatilis, a widely cultivated species with yellow flowers.
- sweet alyssum.
- any widely cultivated herbaceous garden plant of the genus Alyssum, having clusters of small yellow or white flowers: family Brassicaceae (crucifers)
