Compound leaf; Leaflets 1 ~ 3 pairs, oval or oval, hairy on both sides. Cymes with 6 flowers, forming terminal or axillary pseudoracemes, densely glandular hairy or villous; Bracts lanceolate, calyx purple, with 1 1 pulse, about 1 1 mm long, with glandular hairs outside, 2-lipped, wide triangular upper lip and tip. 3 small polymeric tips, 2 teeth on the lower lip, triangular or nearly semicircular; Corolla is blue-purple, 2 ~ 2.7 cm long, hairy ring around the tube, upper lip sickle-shaped, lower lip shorter than upper lip, 3-lobed, with the largest middle lobe; Stamens are inserted at the base of lower lip. Nutlets are black and oval. Flowering from April to June; The fruiting period is July-August. It is a dicotyledonous plant of Labiatae with dry roots and rhizomes. Location: Anhui, Henan, Shaanxi, Shandong and other places.
Salvia miltiorrhiza can be divided into white salvia miltiorrhiza and purple salvia miltiorrhiza according to the color of its flowers. Salvia miltiorrhiza is rare and is an endangered Chinese herbal medicine. Now the main producing area is Laiwu, Shandong Province, and the planting of Salvia miltiorrhiza has applied for national patent and national geographical indication certification trademark.