SANICULA, SANICLE, or Sis-heel, in botany: A genus of the digynia order, belonging to the pentandria class of plants; and in the natural method ranking under the 45th order, Umbellata. The umbels are close together, almost in a round head; the fruit is scabrous; the flowers of the disk abortive. There are three species, viz. the canadensis, marilandica, and europæa, found in many parts both of Scotland and England. This plant was long celebrated for its healing virtues; but it is now totally disregarded.