in botany, a genus of the pentandra di-gynia clas. The florets are sessile, dissimilar, and barren in the disk; and the fruit is crowned with a calyx. There are five species, three of them natives of Britain, viz. the fistulosa, or water-dropwort; the pimpinelloides, or pimpnert-dropwort; and the cro-cata, or yellow dropwort.

in ornithology, a species of motacilla. See Motacilla.