✵The TCM herbalism is also known as pharmaceutics of Traditional Chinese Medicine, or Chinese pharmaceutics, is the branch of health science dealing with the preparation, dispensing, and proper utilization of Chinese herbs. It is majorly composed of Introduction of Chinese Medicinals, Classification of Chinese Herbs, Formulas, and Patent medicines.
Classifications of Herbs:Diuretics and Hydragogues Herbs:Herbs Diuretics.
Introduction: Herbs Diuretics: also known as damp-draining diuretic herbs,an agent or substance herbs that increases urine excretion and water discharge for treating internal retention of dampness.
✵Till the date Oct 10th,2019, there are totally  kinds of common TCM herbs,  kinds of related plant species,  kinds of related fungus species,  kinds of related insect species,  kind of related mineral are recorded in this category. These Diuretics and Hydragogues Herbs:Herbs Diuretics are briefly introduced separately:
Stigma Maydis(Corn Stigma).
Brief Introduction: The herb Stigma Maydis is the dried styles and stigmata of Zea mays L.(family Gramineae), used (1).to induce diuresis for treating edema, (2).to promote bile discharge in cases of jaundice, and (3).to reduce high blood pressure in cases of hypertension. The herb is commonly known as Stigma Maydis, Corn Stigma, Yù Mǐ Xū.
✵The herb Stigma Maydis(Corn Stigma) is the dried styles and stigmata of Zea mays L., it is a plant of the Zea Genus, the Poaceae(Gramineae or true grasses family) family of the Poales order.
Zea mays L.: The Zea mays L., is a plant of the Poaceae family and Zea genus, perennial herb, 50~100 cm tall. Main root is hypertrophy, woody, often branched, off-white. Stems erect, much branched at upper, with fine ribs, white pilose. Pinnate with 13~27 leaflets, 5~10 cm long; petiole 0.5~1 cm; stipules free, ovate, lanceolate or linear-lanceolate, 4~10 mm long, below the white soft Glabrous or glabrous; leaflets elliptic or oblong-ovate, 7~30 mm long, 3~12 mm wide, apex obtuse or slightly concave, with small pointed or inconspicuous, base rounded, upper green, proximal Glabrous, below the vaginal discharge white pilose. Racemes slightly dense, with 10~20 flowers; total pedicels and leaves nearly as long or long, to fruit significantly elongated; bracts linear-lanceolate, 2~5 mm long, abaxially white pilose ; Pedicels 3~4 mm long, slightly brown or black pilose with inflorescences bracteate; 2 bracteoles; calyx campanulate, 5~7 mm long, outside white or black pilose, sometimes calyx tube subglabrous, Calyx teeth hairy, calyx teeth short, triangular to subulate, longer than only 1/4~1/5 of calyx tube; corolla yellow or yellowish, flag flap obovate, 12~20 mm long, the base has a short handle, the flap is slightly shorter than the flap, the valve oblong, the base with short ears, valve handle about 1.5 times longer than the flap, the keel flap and wing flap nearly equal length, flap semi-oval, Pedicel slightly longer than valves; ovary shank, pilose. Pods thinly membranous, slightly swollen, semi-elliptic, 20~30 mm long, 8~12 mm wide, spiny apical, both sides white or black pubescent, fruit neck beyond the calyx; 3~8 seeds. Its flowering period is from June to August, fruiting from July to September.
The Zea mays L., is cultivated widely nowadays, it was native to South America, and might first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. It is now cultivated in many areas of the planet earth.