Qiang Huo, Notopterygium (Notopterygium Incisum) is a perennial herb, 60 to 150cm in height. Stout rhizome is in the shape of cylinder or irregular lumps, dark brown to reddish brown, and with withered leaf sheaths at the top. Erect stems are cylindrical, hollow, and with lavender surface and vertical straight stripes. Basal leaves and leaves in lower part of stem have a long handle, which extend into membranous sheath from the base to both sides; leaf blade is ternate-3-pinnate and with 3-4 pairs leaflets; Oblong schizocarp is 4 to 6mm long, about 3mm wide and the main ridge extends into 1mm wings in width. Bloom time is from July to September and fruiting time is from August to October.