[mass noun]an aromatic herbaceous plant of the mint family, some kinds of which are used as culinary and medicinal herbs 香紫苏
Genus Salvia, family Labiatae: several species, in particular the southern European S. sclarea, which is used in perfumery and from which an essential oil (clary sage) is obtained 鼠尾草属,唇形科:数种,尤指南欧丹参,用于制造香水,提炼精油紫苏精油
语源
late Middle English: from obsolete French clarie, from medieval Latin sclarea