Introduction of Di Gu Pi:Chinese Wolfberry Bark or Cortex Lycii.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Chinese Wolfberry Bark, its English name, Latin name, property and flavor, its botanical source two plant species, ①.Lycium chinense Mill., ②.Lycium barbarum L., with a detailed introduction to the botanical features of these two plant species, the growth characteristics, and ecological environment of these two plant species, the features of the herb Chinese Wolfberry Bark, its pharmacological actions, medicinal efficacy, and administration guide.

Cortex Lycii(Chinese Wolfberry Bark).

Chinese Wolfberry Bark:plant and herb Pin Yin Name: Dì Gǔ Pí.
 English Name: Chinese Wolfberry Bark.
 Latin Name: Cortex Lycii.
 Property and flavor: cold, sweet.

 Brief introduction: The herb Cortex Lycii is the dried root-bark of Lycium chinense Mill. Or Lycium barbarum L.(family Solanaceae), used for treating chronic fever and hemoptysis in cases of consumptive diseases, and also for diabetes. The herb is commonly known as Cortex Lycii, Chinese Wolfberry Bark, Dì Gǔ Pí.

 Botanical source: The herb Cortex Lycii(Chinese Wolfberry Bark) is the dried root-bark of Lycium chinense Mill. Or Lycium barbarum L., they are plants of the Lycium genus, the Solanaceae(nightshades) family of the Solanales order. The herbal classics CHMM defined the Cortex Lycii(Chinese Wolfberry Bark) as the dried root-bark of Lycium chinense Mill.

(1).Lycium chinense Mill.

 Lycium chinense Mill.:growing trees Botanical description: The Lycium chinense Mill., is commonly known as "Gou Qi", is a plant of the Solanaceae(nightshades) family and Lycium genus. It is sprawl shrubs, up to 1 meter remaining. Branches slender, young branches angular, sheath gray, glabrous, usually with short spines, born in leaf axils, about 5 cm long. Leaves alternate or several clusters; leaf ovate diamond-shaped ovate-lanceolate, 2~6 cm long, 0.6~2.5 cm wide, apex acute or obtuse, base narrowly cuneate, entire, both sides glabrous. Flowers axillary, usually solitary or digitally fasciculate: calyx campanulate, 3~4 mm long, apex 3-5-lobed; corolla funnel-shaped, tube conspicuously constricted and then gradually enlarged upward, ca. 5 mm, apex 5 Fission, lobes long ovate, a few times the length of the tube, purple, margin with sparsely hairy, tube staminate with a pubescent hair slightly above the birthplace; 5 stamens, with corolla, anther T shaped living, 2 rooms, Filaments usually extending; pistil 1, ovary oblong, style fine, stigma capitate. Berry ovate or oblong, 0.5~2 cm long, 4~8 mm in diameter, dark red or orange. Most seeds, kidney-shaped and flat, brown. It is flowering from June to September, fruiting from July to October.

 Growth characteristics: The Lycium chinense grows on slopes, in fields, or hilly areas. It distributes in most areas of China.

 Chinese Wolfberry Bark:herb photo Characters of herbs: The root bark is cylindrical, grooved or irregularly rolled, with different sizes, generally 3~10 cm long, 0.5~2 cm in diameter and 1~3 mm thick. The outer surface is khaki or grayish yellow, coarse and rough, with irregular longitudinal cracks, easy to turn to scaly and fall off; The inner surface is yellow-white with fine longitudinal stripes. The texture of the herb is loose and crisp, easy to break, the fracture surface is uneven, the fracture surface is divided into inner and outer layers, the outer layer is yellowish brown and the inner layer is grayish white. The herb has a slight smell, it tastes slightly sweet and bitter. The herb which is thick tube, thick layer, regular shape, no wood core and fragments is better.

 Pharmacological actions: ①.the decoction can inhibit typhoid bacilli, Paratyphoid A, and Dysentery fretella, and can significantly improve the IL-2 deficiency of mouse spleen cells caused by cyclophosphamide; ②.a strong antipyretic effect; ③.antihypertensive effect; ④.lowering blood sugar, lowering blood fat and stimulating the uterus.

 Medicinal efficacy: Cool blood in reduce steaming, clear lung and down bear fire, clear deficiency heat, purging lung fire, cool blood. It is indicated for Yin deficiency and hectic fever, Yin deficiency and consumptive heat, bone steaming and night sweat, lung heat and cough, infantile malnutritional stagnation and fever, vomiting blood, hemoptysis, epistaxis, hematuria, endogenous heat and consumptive thirst.

 Administration of Cortex Lycii(Dì Gǔ Pí): 
Reference: Administration Guide of Cortex Lycii(Dì Gǔ Pí)
TCM Books: ①.Internally:9~15 grams;②.Internally:water decoction, 3~6 qian(about 9~18 grams), or prepare to pill,powder.Externally:mouth wash with water decoction,drip washing,grinded into powder and apply stick;③.Internally:water decoction, 9~15 grams, big dosage could be 15~30 grams.
 Contraindications,Precautions and Adverse Reactions: the herb Cortex Lycii should avoid ironware during preparation.

(2).Lycium barbarum L.

 Lycium barbarum L.:fruiting tree Botanical description: The Lycium barbarum L., is commonly known as "Ningxia Gou Qi", or "Ningxia Wolfberry", is a plant of the Solanaceae(nightshades) family and Lycium genus. Shrubs or grow into small trees after cultivation, up to 2 to 3 meters. The main branch number, thick, fruiting branches slender; skin pale gray, spiny branch short and thin, was born in leaf axils, 1~4 cm long. Leaves alternate, or a few clusters of short branches; petiole short; leaf narrowly oblanceolate, ovate-lanceolate or ovate oblong, 2~8 cm long, 0.5~3 cm wide, apex pointed, base wedge or narrowly cuneate extending petiole down, entire, dark green above, below pale green, glabrous. Flowers axillary, usually 1 to 2 clusters, or 2 to 5 clusters grow in the short branches; calyx bell-shaped, 4~5 mm long, apex 2 to 3 parts; corolla funnel-shaped, about 8 mm tube length, the first 5 Fission, lobes ovate, ca. 5 mm; pink or purplish red, with dark purple veins, stamens on the tube above the birth of a round of pilose; 5 stamens; 1 pistil, ovary oblong, 2 rooms, Style linear, stigma capitate. Berry oval, oval or broadly ovate, 8~20 mm long, 5~10 mm in diameter, red or orange-red. Most seeds, nearly kidney-shaped and flattened. Its flowering period is from May to October, fruiting from June to October.
Herbs Clearing Heat and Cooling the Blood.

 Introduction: Herbs Clearing Heat and Cooling the Blood: an agent or substance herbs that has the effect of eliminating pathological heat from the nutrient and blood systems in cases of warm diseases marked by fever accompanied by delirium, eruptions and bleeding symptoms, and also in other diseases with bleeding due to heat in the blood.
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