Dahurica dahurica herbal medicine is long conical, gray-brown or yellow-brown surface, solid, with a concave stem scar at the tip.
Dahurica dahurica is a perennial herb of the genus Angelica in the family Umbelliferae, with several varieties. The main root is thick, hollow inside, often purplish, and mostly unbranched. The stem is dark purple, less branched in the upper part, and densely covered with short stiff hairs. Lower and middle leaves triangular, flowers purple, rarely white. Fruit oblong to ovoid, yellowish brown, sometimes purplish. Flowering July to August, fruiting August to September.
Dahurica is not sensitive to light, adaptable. Angelica dahurica varieties are more, there are Sichuan Angelica dahurica, Hang Angelica dahurica, mountain Angelica dahurica points, Yu Angelica dahurica, Sichuan Angelica dahurica was announced as the national agricultural products geographical indications. According to "Chinese Pharmaceutical Dictionary" assessment, dahurica produced in Sichuan for the positive, taste warm, also known as aromatic. Angelica dahurica for perennial tall herb, 1 ~ 2.5 meters high. Root cylindrical, branched, diameter 3 ~ 5 cm, the outer skin yellow-brown to brown, with a strong odor.
Morphological features
The stem base is 2~5 centimeters in diameter, sometimes up to 7~8 centimeters, usually purplish, hollow, with longitudinal grooves. Basal leaves are pinnatifid, long-petiolate, with tubular clasping stem-margined membranous leaf sheaths on the lower part of the petiole. Upper stem leaves two to three times pinnately divided, leaf blade ovate to triangular in outline, 15-30 cm long, 10-25 cm wide, petiole up to 15 cm long, proximal part of sac-like expanded membranous leaf sheath, glabrous or sparsely hairy, often purplish.
The ultimate segments are oblong, ovate or linear-lanceolate, mostly sessile, 2.5-7 cm long, 1-2.5 cm wide, acute, with irregular white cartilaginous coarsely serrate margins. The mucro, often unequal in size on either side of the base, is decurrent along the leaf axis to become winged. The leaves below the inflorescence simplify into leafless, conspicuously expanded sac-like leaf sheaths, glabrous outside.