Hello, it is goose grass, stone caraway annual small herb, 5-20cm high. stem slender, multi-branched, base creeping, easy to root after landing, glabrous or slightly with fine wool. Leaves alternate; sessile; leaf blade cuneate-oblanceolate, 7-20mm long, 3-5mm wide, apex obtuse, margin irregularly sparsely toothed, glabrous, or slightly fine hairs below. Function disperses wind-cold, passes the nose, relieves cough, detoxification.