Chui Pen Cao

Herba Sedi (Chuipencao) Stringy Stonecrop Herb Stringy Stonecrop Herb is the fresh or dried herb of Sedum sarmentosum Bunge (Fam. Crassulaceae). The drug is collected in summer and autumn, removed from foreign matter, used freshly, or dried. Description Stems slender, over 20 cm long, some nodes bearing slender adventitious roots. Leaves whorled in 3, oblanceolate to oblong, green, fleshy, 15-28 mm long, 3-7 mm wide, nearly acute at the apex, sharply narrow at the base, calcarate. Odour, slight; taste, slightly bitter. Identification Transverse section of stem: Epidermal cells rectangular, outer walls thickened, cortex of about 10 layers of parenchymatous cells. Vascular cylinder small, vascular bundles collateral, vessels subrounded. Pith triangular, cells polygonal, walls strongly thickened and non-lignified. Cells near phloem and pith cells containing reddish-brown secretion. Processing Eliminate foreign matter, cut into sections for the dried herb. Action To remove damp-heat, and t