, formerly known as: Rumex japonicus, alias: spinach, saxifragon, soft bromegrass, Artemisia, etc., Latin name: Gnaphalium? affine? D.? Don? It is an annual herb of Compositae and Gnaphasia. The stems are erect or the branches from the base are inclined upward at the lower part, with a height of 1-4 cm or more, a diameter of about 3 mm at the base, unbranched and grooved at the upper part, covered with thick white cotton wool, and the internodes are 8-2 mm long, and rarely reach 5 cm at the upper part. Leaves sessile, spoon-shaped oblanceolate or obovate spoon-shaped, stems and leaves are used as medicine, which is a common medicine for relieving cough, eliminating phlegm, treating asthma and bronchitis, non-infectious ulcers and wounds, and also has the effect of lowering blood pressure after oral administration.

annual herb. The stems are erect or the branches from the base are inclined upward at the lower part, with a height of 1-4 cm or more, a diameter of about 3 mm at the base, unbranched and grooved at the upper part, covered with thick white cotton wool, and the internodes are 8-2 mm long, and rarely reach 5 cm at the upper part. Leaves sessile, spoon-shaped oblanceolate or obovate spoon-shaped, 5-7 cm long and 11-14 mm wide; upper leaves are 15-2 mm long and 2-5 mm wide; the base gradually narrows, slightly descends, the top is round, with spiny tips, white cotton wool on both sides, often thin on the top, and one vein is not obvious on the bottom. There are more or fewer heads, 2-3 mm in diameter, nearly sessile, densely forming corymbose inflorescences at the top of branches, with yellow to light yellow flowers; Involucre bell-shaped, about 2-3 mm in diameter; The involucral bracts are 2-3 layers, golden yellow or lemon yellow, membranous and shiny, the outer layer is obovate or spoon-obovate, the back base is covered with cotton wool, the top is round, the base is tapering, about 2 mm long, the inner layer is spoon-shaped, the back is usually hairless, the top is blunt, and the length is 2.5-3 mm; Receptacle center slightly concave, glabrous. Female flowers are numerous, corolla is thin and tubular, about 2 mm long, corolla tip is enlarged, 3-toothed, and lobes are hairless. Bisexual flowers are few, tubular, about 3 mm long, gradually expanding upward, 5-lobed eaves, triangular lobes acuminate, glabrous. Achenes are obovate or obovate-cylindrical, about .5 mm long, with papillae. The crown hair is rough, dirty white, easy to fall off, about 1.5 mm long, and the base is combined into 2 bundles. The flowering period is from January to April and from August to November.