Mesona chinensis, also known as fairy grass and jelly grass, is an annual herbaceous perennial plant. Planted in one year, it can benefit for many years, up to 100 cm in height; the stems are initially covered with sparse pubescence and fine bristles. , a little old and clean. The leaves are opposite, with petioles 2 to 15 mm long; the leaves are broadly ovate to narrowly ovate, sometimes nearly round, 2 to 5.5 cm or longer, with pubescence on both sides or hairs only on the lower veins, sometimes nearly Hairless. Blooms in late autumn. The inflorescences are arranged in terminal racemes, 2 to 8 cm long; the bracts are round or rhombus-ovate, with a tail-shaped tip, often slightly longer than the flower; the calyx is seed-like, 2 to 2.5 mm long, with 10 longitudinal veins and many small transverse veins, densely covered with white pubescence, the upper lip has 3 clefts, the middle cleft is extremely large, the lower lip is whole or slightly concave; the corolla is white or reddish, 3 to 3.5 mm long, the upper lip is broad and has 4 teeth , the middle 2 teeth are not obvious, and the lower lip is scaphoid. Stamens 4, filaments prominent.

The calyx of the fruit is altar-shaped, with extremely obvious vertical and horizontal veins. Consisting of many small hollows; nutlets oblong. Often grows in sandy grasslands or beside mountain streams. Cut the above-ground parts in spring, summer and autumn and dry them in the sun for later use.

Distributed in southern my country.