Scientific name Convolvulus arvensis L. Is a perennial herb of the family Convolvulaceae. Distributed in the northeast, north, northwest, Henan, Shandong, Jiangsu, Sichuan, Tibet and other provinces. The main damage is cotton, beans, wheat, vegetables and fruit trees.
Morphological characteristics, leaves alternate with stalks; leaf shape changeable, but the base is mostly squat-shaped or arrow-shaped, also known as arrow leaf spin. The flowers are purplish red, 1 to 3 blossoms; the pedicels have two narrow bracts, far from the calyx. Capsule spherical to conical. Seeds ovoid-triangled. Root buds or seeds reproduce.
Ecological characteristics are born in farmland or wasteland. Tian Xuanhua can grow into patches in moist and fertile soil, flourish, and produce overwintering buds on the roots near the ground in summer and autumn. The regeneration ability is strong. After cutting the upper part of the ground, cutting the root, and cutting off the lotus root, it can still develop into New plants.
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General Disposables
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Medical Disposables
General Medical Disposables,Medical Mask,Medical Gauze,Medical Syringe
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