Annual herb, unbranched, 1 m high; The stems are pilose. The leaves are round, 5-7-lobed or angular, 5-8 cm in diameter, heart-shaped at the base, triangular and round lobes, fine serrations at the edge, extremely wrinkled and twisted at the same time, smooth and hairless on both sides or sparsely strigose or sparsely stellate, especially the veins; Petiole thin, 4-7 cm long, sparsely pilose. Flowers are small, white, inconspicuous, about 6 mm in diameter, usually solitary or clustered between leaf axils, with pedicels near or very short pedicels; 3 bracteoles, lanceolate, 4-5 mm long and 65438 0 mm wide, sparsely strigose; Calyx shallow cup-shaped, 8- 10 mm long, 5-lobed, triangular, sparsely stellate pilose; Petals 5, longer than sepals.

Fruit oblate, 8 mm in diameter, mericarpous 1 1, reticulate, villous; The seeds are small, kidney-shaped, with a diameter of 1 mm and dark black. The flowering period is from June to September. Occasionally cultivated in Kunming, Yunnan. Vegetables were widely planted in ancient China, and are still cultivated in Hubei, Hunan, Guizhou, Sichuan, Jiangxi and other provinces, as well as in Beijing and Huining, Gansu. Shoots and leaves can be used as vegetables. Both stems and leaves are used as medicine. Medicinal parts: seeds (Malvaceae); Root (mallow root; Medicinal functions of tender seedlings or leaves (winter sunflower leaves): seeds can benefit water, smooth intestines and lower milk; Roots can clear away heat and toxic materials, and induce resuscitation and stranguria; Tender branches or leaves can clear away heat, promote diuresis and moisten intestines.