Sage (scientific name: Salvia japonica Thunb.) is an annual herb of the family Lamiaceae and Salvia. The stem is erect, the plant height is 30-100 cm, the plant is clustered, and the plant is pilose. The stem is quadrangular columnar and has a slightly
lignified lower part. Leaves opposite, long elliptic, green veins distinct, glabrous on both sides, subglacial glands. The roots are dense. Terminal racemes, inflorescences up to 15 cm or more; bracts smaller, blue-purple, stalks stalked before flowering; stalks densely pubescent. Calyx campanulate, blue-purple, glabrous. Flowering from June to September.