Woad

Woad

(notes to the classic of Materia Medica)

[synonyms] Chinese Cabbage (Yinshan Zhengzheng), xiasong (Complete Book of agricultural administration), Chinese cabbage, Jiangmen cabbage (flora of Guangzhou), Chinese Cabbage (seed plants of Southern Jiangsu).

[source] it is a young plant of Brassica chinensis.

[plant morphology] green vegetables

Herbs annual or biennial, all glabrous. The basal leaves are strong and bright, obovate or broad obovate, 30-60 cm long, entire or with indistinct obtuse teeth, and the base gradually narrows into a broad stalk; the base of stem leaf is ear shaped and embracing. Flowers pale yellow, ca. 9 mm long, clustered at the top of raceme, and corolla covered with unopened flower buds; sepals 4. Petals 4, crisscross; stamens usually 6, 4-strong; ovary superior, stigma capitate. The pod is slender, 3-7 cm long and 3-4 mm thick, with a beak 8-12 mm long. It blooms in spring.

It is widely cultivated all over the country.

The seeds of this plant are also used for medicine. Please refer to the special section for details.

In the compendium, besides green vegetables, Isatis indigotica also includes Chinese Cabbage (also known as Chinese cabbage), which belongs to the same genus. See the article "Chinese cabbage with yellow bud".

[chemical constituents] the content of protein, fat, carbohydrates, crude fiber, ash, calcium, phosphorus, iron, carotene, riboflavin, nicotinic acid and ascorbic acid was 1.1 g, 0.1 g, 2 g, 0.4 g, 0.8 g, 86 mg, 27 mg, 1.2 mg, 1.03 mg, 0.03 mg, 0.08 mg, 0.6 mg and 36 mg respectively.

Sweet and smooth.

① Cui Yuxi's book of food: "it tastes sweet, less cold and non-toxic. "

② "Diannan Materia Medica": "the nature is peaceful, the taste is sweet. "

[Guijing] Ben Cao Qiu Zhen: "enter the intestines and stomach. "

[function indications] antipyretic in addition to trouble, Tongli gastrointestinal. Treatment of lung heat, cough, constipation, erysipelas, lacquer sores.

① "Bielu": "the main Tongli stomach, in addition to the chest trouble, quench thirst. "

② Cui Yuxi's book of food: "He Zhong. "

③ "Dietotherapy Materia Medica": "to treat thirst, to eliminate food, and to reduce Qi. "

④ "Four tones of Materia Medica": "treat miasma, stop heat cough. "

⑤ "Diannan Materia Medica": "it can eliminate phlegm, stop cough, facilitate urination, and clear lung heat. "

[usage and dosage] oral administration: boiled or mashed juice. External use: tamping.

[taboo] 1. In the compendium of Chinese medicine: "Qi deficiency, cold stomach, excessive food, nausea and vomiting. "

② "With the rest of the diet spectrum:" fresh smooth intestines, not cold food. "

[prescription selection] 1. To treat Chiyou in children, you can walk up and down and die in your heart: apply it with pestle and woad. (secret records of son and mother)

② For the treatment of hair and back, take one liter of Di song juice every day. (Shanghan Lei Yao)

③ Treatment of lacquer poison and sores: mash and apply woad. (compendium)