紫菀,又名青菀、紫倩、小辫,为菊科植物紫菀的根及根茎。产于河北、内蒙古、东北、山西、河南、安徽等地,通常生长于山地阴坡,药用习以河北安国栽培的紫菀为佳(当地习称“小辫”)。紫菀为多年草本,根茎短,密生多数细根,根皮紫红色。茎直立,单叶互生,头状花序。春、秋季采挖,除去有节的根茎(母根)和泥沙,编成辫状晒干,或直接晒干。紫菀药材根茎呈不规则块状,大小不一,顶端有茎、叶的残基,质稍硬。根茎簇生多数细 Aster, also known as barley, purple Qian, pigtail, Asteraceae aster root and rhizome. Produced in Hebei, Inner Mongolia, northeast, Shanxi, Henan, Anhui and other places, usually growing in the shady hillsides, medicinal cultivation of purple astigmatism cultivation in Hebei Province is better (local call “pigtail ”). Aster for many years herbs, rhizome short, dense most fine roots, root bark fuchsia. Stems erect, single leaf alternate, flower head. Excavation in spring and autumn, remove the knot rhizomes (roots) and sediment, braided dried, or direct drying. Aster Radix rhizome irregular block, the size of the top of the stem, leaves the residue, the quality of hard. Rhizomes mostly finely tufted