1. Alias
Er Chou, Black Chou, White Chou, Grass Golden Bell, Golden Bell, Black Morning Glory, White Morning Glory.
2. Plant morphology
Annual entangled herb. The stem is left-handed, over 2 meters long, with many branches and short hairs. Mutual growth of leaves; Having long petioles; The leaf blade is heart-shaped ovate, 3-6 cm long, often 3-lobed to the middle, in the shape of a spear, with a sharp apex and a heart-shaped base, covered with hairs on both sides. Flowering in summer, with 1-3 axillary flowers and extremely short stems. The total stem is generally shorter than the petiole; Calyx 5 deeply lobed, lobes strip-shaped lanceolate, apex long pointed, base covered with long hair, abduction; The corolla is funnel-shaped, resembling a trumpet, blue, purple, or white in color, with 5 shallow lobes at the edges. It opens in the morning and gradually withers during the day; There are 5 stamens of unequal length, with hairy filaments at the base. The ovary has 3 chambers, with 2 ovules in each chamber. The capsule is spherical in shape, with an outer or inverted calyx at the base. Seeds with 3 edges and egg shape; The seeds with light colors are yellow brown and are called "white ugly" when used in medicine, while the seeds with deep colors are mostly black brown and are called "black ugly" when used in medicine. The flowering and fruiting periods are summer and autumn.
3. Origin distribution
Born in shrubbery on mountain slopes or near residential areas; Cultivate more. Produced throughout the country.
4. Harvesting and processing
At the end of autumn, when the fruit is ripe and the shell is not cracked, the plants are harvested, dried, seeded, and impurities are removed.
5. Characteristics of medicinal herbs
Orange petal shaped. 4-8 millimeters in length and 3-5 millimeters in width. The surface is gray black or light yellow white. There is a shallow longitudinal groove on the back, and a point like navel with slight concavity at the lower end of the ventral edge. Hard in texture, with pale yellow or yellow green wrinkled and folded cotyledons visible in cross-section, slightly oily. Odorless, pungent and bitter in taste, with a tingling sensation.
6. Sexual Taste Returning to the Classics
Cold in nature and bitter in taste. Return to the lung meridian, kidney meridian, and colon meridian.
7. Effect and Function
Purging water and promoting bowel movements, eliminating phlegm and promoting diuresis, killing insects and attacking accumulation. Belonging to the subcategory of laxative drugs, it is a moisturizing medicine.
8. Clinical application
Take 3-6 grams and decoct in water. Used to treat swelling, obstruction of bowel movements, accumulation of phlegm, shortness of breath, wheezing and coughing, abdominal pain caused by insect accumulation, roundworm and tapeworm diseases.
9. Pharmacological research
It has functions such as diarrhea, diuresis, smooth muscle stimulation, and deworming.
10. Chemical composition
Containing morning glory resin glycoside (also known as gibberellin), it is an effective ingredient in the diarrhea of morning glory seeds. It also contains components such as morning glory glycoside, crotonic acid, ergotamine, gibberellin, linoleic acid, morning glory acid C, caffeic acid, etc.
11. Usage taboos
Pregnant women are prohibited from taking it, and those with weak constitutions should take it with caution. It is not advisable to take it excessively or for a long time to avoid toxic reactions such as dizziness, headache, vomiting, severe abdominal pain, diarrhea, increased heart rate, low and dull heart sounds, language disorders, sudden fever, hematuria, discomfort in the waist, even high fever and coma, cold limbs, cyanosis of the lips, cyanosis of the whole body's skin, shortness of breath, etc. Not suitable for use with croton and croton cream.
12. Compatibility prescription
① Treatment of edema: Apply the powder of morning glory seeds. Water suits are small and convenient on Mondays. (From "Qian Jin Yao Fang")
② To treat swelling caused by stopping drinking: 120g of morning glory powder, 30g of fennel (stir fried) or 30g of wood fragrance added. Above is fine powder. Mix 3-6 grams of natural ginger juice and take it while lying down. (Yu Gongsan in "Confucian Family Matters")
③ To treat wind heat and red eyes: Use morning glory seeds as powder, mix with scallion white soup, and apply to the affected area. (Quanzhou Materia Medica)
④ Treat all insect accumulation: 60g of morning glory seeds (stir fried, ground into powder), 30g of betel nut (stir fried), and 50 pieces of gentleman's meat (stir fried). All are at the end. Take 6 grams per dose, add sugar, and half for children. (Eternal Seal Formula)
⊙ The content of the article is for clinical reference only. Non TCM professionals are not allowed to test drugs.