Ligusticum chuanxiong

Ligusticum genus in the Apiaceae family

Ligusticum chuanxiong is a perennial herb, 40-70cm tall. The whole plant has a strong aroma. The rhizome is an irregular, nodular, fist-shaped mass with many fibrous roots at the lower end. The stem is upright, cylindrical, hollow, with vertical grooves on its surface. The nodes at the lower part of the stem are enlarged into a disk shape (commonly known as lingzi), and the nodes above the middle part are not enlarged. The leaves at the lower part of the stem are stalked, the stalk is 3-10cm long, and the base is enlarged into a sheath; the outline of the leaves is oval and triangular, 12-15cm long, 10-15cm wide, with three to four back and three-out pinnate lobes, and 4-5 pinnae. Yes, ovate-lanceolate, 6-7cm long, 5-6cm wide, the last segment is linear-lanceolate to long-ovate, 2-5mm long, 1-2mm wide, with a small tip at the top, only on the veins There are sparse pubescence; the leaves on the upper part of the stem are gradually simplified. The compound umbel is terminal or lateral, with 3-6 involucral bracts, linear, 0.5-2.5cm long; 7-20 spokes, unequal length, 2-4cm long; small umbels with 10-24 flowers; Involucral bracts 2-7, linear, slightly purple, pubescent, 3-5mm long; calyx teeth are rudimentary; petals are white, obovate to elliptical, with a short pointed protrusion at the apex, incurved; stamens 5, Anthers are light green; styles are 2, 2-3mm long, recurved downward. Both sides of the young fruit are flattened, 2-3mm long and about 1mm wide; there are 1-5 oil tubes in the dorsal rib groove, 2-3 oil tubes in the lateral rib grooves, and 6-8 oil tubes on the commissure surface. The flowering period is from July to August, and the young fruit period is from September to October.

I am a little confused about the picture album in Baidu Encyclopedia. There are two different pictures of the plant Ligusticum chuanxiong.