Engelsk definition
A plant genus of the family ALISMATACEAE. The flowers have 3 green sepals, 3 yellow and white petals, 6 stamens, and several pistils. Members contain TRITERPENES and SESQUITERPENES. Alisma is a component of tokishakuyakusan. Some species in this genus are called water plantain which is also a common name for other ALISMATACEAE plants.