Senna leaves are the leaves of the senna tree, a kind of legume. It is mainly divided in the coastal areas of China, the height of the plant of the senna tree, usually can reach about one meter, the leaves grow with each other, but the petiole is relatively short. In addition, its leaves are long ovate, about four centimeters in length, and they are pointed at the top. Senna leaf, also known as Senna leaf, bubble bamboo leaf, for the leguminous plant narrow-leaved senna or sharp-leaved senna leaflets, native to foreign countries, now China's Guangdong, Hainan, Yunnan and other places also have introduced cultivation. Its nature is cold, sweet and bitter taste, into the large intestine, with the efficacy of heat conduction, for the treatment of heat constipation, stagnation and abdominal distension. In recent years in the import of senna leaves often mixed with a variety of senna (i.e., lentil) plant leaves, most of which are mixed with fake ear leaf senna, use attention to identify.

Laxative leaves belong to the diarrhea class of drugs, containing fenugreek glucoside A, fenugreek glucoside B, can stimulate the large intestine to increase colon tension and peristalsis, reduce intestinal water reabsorption, resulting in defecation. As a potent laxative, laxative leaves, taken in large doses, have a strong irritation of the intestinal wall, resulting in peristalsis hyperactivity, abdominal pain, abdominal distension is obvious. Daily does not advocate the use of this weight loss, commonly used in the treatment of constipation, constipation, it should not be used across 3g, and bubble time to watch out for time, not too long, it is recommended to soak for 25 minutes. If you cook with water, it is recommended to cook for 15 minutes, a long time will crush the useful components.

Basic Information

Chinese Name

Laxative Leaf

Alias

Chenna Leaf, Bamboo Leaf

Boundary

Botanical World

Genus

Mandelicine

Parasite

Region of Distribution

Yunnan, Guangdong, Hainan

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Morphology

These are the main characteristics of the plant. >

Morphological features

1) Narrow-leaved Senna

Herb-like small shrubs, up to 1 meter high. Double pinnately compound leaves, leaflets 5 to 8 pairs, shortly stalked; stipules ovate-lanceolate, 2-4 mm long; leaflets ovate-lanceolate to linear-lanceolate, apex acute, base slightly asymmetric, glabrous or glabrescent. Racemes axillary, with 6 to 14 flowers; pedicels with an ovate bract at base, readily deciduous; sepals 5, long ovate; petals 5, obovate, yellow; stamens 10, the upper 3 small, sterile, the central 4 equal, the lowermost 3 curved downward, the anthers slightly quadrangular, the base aristate, 4-loculed; pistil curved as a falcate, the ovary stipitate, sparsely hairy. Pods flattened oblong, 4-6 cm long, 1-1.7 cm wide, dorsal suture with a conspicuous cusp at the tip, pericarp chestnut-brown, greenish at the margin, with white hairs when young. Seeds 4-7, slightly oblong and compressed, apically truncated and slightly concave, with pontiform wrinkles, brownish green, with a thread-like seed stalk. Flowering period is from September to December. Fruiting in March of the following year.

2 pointed leaf senna

Morphology and the former species is broadly similar, the difference, this species of leaves are long ovate,

the apex acute or spiny, the base asymmetric, the back of the leaf gray-green; smaller flowers; pods are wider, 2 ~ 2.5 cm wide, the apex of the tip of the tiny, inconspicuous, for the leaves of the plant Zedoaceae zedoaria, the plant morphology of detailed "zedoaria" article.

Distribution range

Originally produced in the tropics, East Africa, offshore and on the islands, southern Arabia and northwestern India, southern are. Now Hainan, Yunnan has been introduced from abroad.