Plantain, also known as Brassica napus and Plantain, is a perennial herb with a stem as high as 50 cm and developed fibrous roots. Has expectorant, antitussive and antiasthmatic effects. Growing in Shan Ye, roadsides, flower beds, rivers and other places. Rhizomes are short and thick with dense fibrous roots. All leaves have roots, smooth, broadly ovoid, wavy edges, inconspicuous blunt teeth, and 5 main veins. Guangxi people call it pig's belly ash pot grass, Guangdong people call it field irrigation grass, Zhejiang people and Yunnan people call it frog grass, Fujian people call it rice spoon grass, Qinghai people call it pig's ear grass, Shanghai people call it cow beet, Jiangsu people call it lawsuit grass, Northeast people call it wheel dish, and Shandong people call it cowtongue tree (broad). Because of its fishy smell, Hakka people call it Houttuynia cordata all their lives. Plantago perennials. It grows in Shan Ye, roadsides, flower beds, vegetable gardens, ponds, rivers and other places. Plantago asiatica is a traditional Chinese medicine for promoting diuresis and eliminating dampness, and its main indications are: dysuria, leukorrhagia, water swelling, diarrhea due to summer-heat dampness, red eyes, cough and asthma due to phlegm heat. Perennial herb with stems up to 50 cm and fibrous roots. Leaves have roots, long stalks, almost as long as or longer than leaves, and the base is swollen; Leaf blade ovoid or ovoid, 4 ~12cm long and 2 ~ 7cm wide, with sharp or blunt tip, narrow basal stalk, entire or irregularly wavy shallow teeth, usually with 5 ~ 7 arc veins. Several flower stems, 12 ~ 50 cm high, angular and sparse; The ear is 2/5 ~1/2 of the flower stem; The flowers are light green, and each flower has 1 persistent bracts, triangular; Calyx 4, slightly connate at base, ovoid or ovoid, persistent; Corolla small, gelatinous, corolla tube ovoid, apex 4-lobed, lobes triangular, rolled outward; Stamens 4, inserted near the base of corolla tube, alternate with corolla lobes, anthers oblong, 2-loculed, triangular protruding at the apex, filaments linear; Pistil 1, ovary superior, ovoid, 2-loculed (pseudo-4-loculed), style 1, linear, hairy. The capsule is ovoid and conical, and cracks around the lower 2/5 when it matures, and the lower 2/5 persists. 4 ~ 8 or 9 seeds, nearly oval, dark brown. The flowering period is from June to September. fruit

The period is 7 ~ 10 month. It grows in Shan Ye, roadsides, gardens, vegetable gardens, ponds, rivers and other places. Distributed in all parts of China. ? Hope to adopt