Morphological characteristics of shrubs, slender stems, sometimes climbing, high 1 ~ 3 meters. The cylindrical surface of the root is yellowish brown and bitter. Branches are glabrous, and shoots are gray pubescent. Leaves alternate, odd pinnate compound leaves, five to nine pairs of leaflets, opposite or nearly alternate; Leaflets are ovoid, oblong or ovoid, with entire leaf margin, glabrous or scattered pubescence on the surface of leaves, and densely grayish brown pilose on the back of leaves; Stipules at the base of petiole are very small or almost disappear. The flowers are yellow-white, flowering in May-July, beading in August-1February, slightly twisted, with pubescent pericarp, splitting into 2 petals when mature, and the seeds are oval and black. Dig roots in April-May or August-September, wash and dry for later use.

Growing environment: It often grows in the crevices of limestone foothills, hilltops and slopes. Guangxi, Guizhou, Yunnan and other provinces also produce.

Bitter, cold and toxic in nature, clearing away heat and toxic materials, reducing swelling and relieving sore throat.

Select the first formula: Sophora Tonkinensis 1.5, Cortex Phellodendri and Scutellariae Radix 1.

Usage: decoct in water.

Indications: cancer. Party B: 6 grams of Sophora Tonkinensis.

Usage: decoct in water.

Indications: dysentery. Third party: 20 grams of fresh Sophora Tonkinensis root and half a catty of pork intestines.

Usage: stew meat.

Indications: hemorrhoids. The fourth party: 6 grams of Sophora Tonkinensis.

Usage: decoct in water.

Indications: Gum swelling and pain. The fifth prescription: 9 grams of Sophora Tonkinensis and 30 grams of Abrus cantonensis.

Usage: decoct in water.

Indications: jaundice hepatitis. The sixth party: 9 grams of Radix Sophorae Tonkinensis and Radix Platycodi, 9 grams of Radix Scrophulariae 15 grams, 0/2 grams of Radix Isatidis/kloc-0, 9 grams of Rhizoma Belamcandae.

Usage: decoct in water.

Indications: tonsillitis, sore throat. The seventh prescription: 9 grams of Sophora Tonkinensis and 50 grams of Xiaohong.

Usage: decoct in water.

Indications: tonsillitis, mastitis, appendicitis and postoperative infection. Eighth party: 9 grams of Sophora Tonkinensis and 30 grams of Radix Isatidis.

Usage: decoct in water.

Indications: mumps.