First, the subject classification is different
1, salvia miltiorrhiza
Salvia miltiorrhiza, alias red ginseng, salvia miltiorrhiza, red root. It is a plant belonging to the family Labiatae, Salvia and Salvia.
2. Dangshen
Codonopsis pilosula, alias Huangshen, Fangdangshen, Shangdangshen, Lionhead Ginseng, Huangdang, etc. It is a species of Campanulaceae, Campanulaceae, Codonopsis and Codonopsis.
Second, the morphological characteristics are different
1, salvia miltiorrhiza
Erect perennial herb with thick roots, vermilion outside, white inside, fleshy, odd-pinnate compound leaves, terminal or axillary racemes, lanceolate bracts, bell-shaped calyx with purple, purple-blue corolla, far-reaching style, black and oval nutlets, which bloom from April to August and bear fruit after flowering.
2. Dangshen
Perennial herb with milk. There are many tuberous stem scars on the stem base, the roots are usually hypertrophy and spindle-shaped or spindle-shaped cylindrical, the stems are twined, sterile or bearing flowers first, yellow-green or yellow-white, the leaves alternate on the main stem and lateral branches, the petiole has sparse short bristles, the leaves are oval or narrowly oval, the edges are wavy and obtuse, the upper part is green, the lower part is gray-green, the flowers are solitary at the branch ends, alternate or nearly opposite to the petiole, and the corolla is superior and broad.
Third, different habitats
1, salvia miltiorrhiza
Distributed in China, Hebei, Shanxi, Shaanxi, Shandong, Henan, Jiangsu, Zhejiang, Anhui, Jiangxi and Hunan. Born on hillsides, under forests or beside valleys, at an altitude of120-1300m.
2. Dangshen
China, southeastern Tibet, western Sichuan, northwestern Yunnan, eastern Gansu, southwestern Shaanxi, Ningxia, eastern Qinghai, Henan, Shanxi, Hebei, Inner Mongolia and Northeast China. Born at the edge of mountain forests and thickets at an altitude of 1560-3 100 meters.
Reference to the above content? Baidu Encyclopedia-Danshen, Baidu Encyclopedia-Codonopsis pilosula