(Chinese medicine and plant Atlas)
[synonym] Tang Chong (Tibetan name).
[source] it is the rhizome of scopolamine, a solanaceous plant.
[plant morphology] scopolamine
Perennial herbs. Rhizome stout nodular. The stem is 30-60 cm high with scales at the base. Leaves alternate, oblong, apex pointed, base cuneate, margin irregularly serrate. Flowers solitary in leaf axils, pedicel slender, pendulous; calyx campanulate, calyx short, apex 5-toothed; corolla broad campanulate, apex 5-lobed, purplish brown; stamens 5, inserted at the base of corolla tube; ovary nearly 2-locular, style linear, stigma enlarged, ovules numerous. Capsule globose, annulate above middle. The flowering period is May.
It is cultivated in Northeast China. Born in grassland and around the balcony, roadside, foothills and other places.
[collection] collect in spring and autumn, clean and dry.
[herbal medicine] the dry rhizome is nodular, irregularly curved, about 10 cm long and about 3 cm in diameter, with grayish brown and wrinkled appearance; there are concave stem marks on the upper part of the nodule, and thick and short fibrous roots or root marks below. The cross section is granular and white. No odor, bitter taste.
[taste] warm in nature, numb in taste: highly toxic.
[meridian tropism] entering heart, liver and lung meridians. 50 cm. The stem is divergent from the base, the branches are oblique, mostly tortuous, hard, with striate angular edges. When young, it is densely covered with scattered branched hairs, and then gradually smooth, grass green. Leaves alternate; sessile; lanceolate to linear, 2-7 cm long, 1-7 mm wide, base tapering, apex prickly, entire, with scattered branched hairs, veins protruding, parallel. Bracts ovate, apex acuminate, spiny; flowers bisexual, spikes sessile, axillary, without perianth; stamens 3, filaments conical, membranous, anthers ovoid; ovary with 2 stigmas. Utricles round or elliptic, both sides flat, or abaxially slightly convex, membranous winged, apex bifurcate. Seeds flat, erect, round, endosperm farinous, embryo annular. The flowering period is August. The fruit period is from September to October.
In sand dunes and sandy land. It is distributed in Northeast, North and Northwest China.
[nature and taste] 1. In the collection of materia medica: "it tastes sweet, flat and non-toxic. "
② "Gangmu Shiyi": "sweet taste, warm nature. "
[function indications] it is used to treat food stagnation, choking and nausea.
① Materia medica notes: "replenish qi, lighten body, strengthen muscles and bones. "
② "Kangxi several leisure time Gewu Bian": "warm nature, benefit the spleen and stomach, easy to digest, vomit, eat more beneficial. "
③ "Qingre Xiaofeng" is one of the most popular Chinese medicine. "
④ "Gangmu Shiyi": "Tongli large intestine, xiaosushi, treatment of choking diaphragm nausea. "
[usage and dosage] oral administration: decoction or cooking.
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