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一般中药店出售的板蓝根,有菘蓝与马蓝之别。江苏省阜宁县人民医院用的板蓝根(见下页“板蓝根的临床应用”一文),根据饮片的外形来看,象是菘蓝。菘蓝为十字花科二年生草本植物。基生叶较大,具柄,叶片长圆状椭圆形,茎生叶长圆形或长圆状披针形,缘有齿,叶基箭形。根呈圆柱形,稍弯曲,长约8~16厘米,直径3~8毫米,表面土棕色,根头部稍膨大,
The Banlangen that is sold at a traditional Chinese medicine shop has a difference between indigo and horse blue. The Banlangen used in the Suining County People’s Hospital of Jiangsu Province (see the article “Clinical Use of Radix Isatidis”) is based on the appearance of the pieces and is like indigo. Indigo is a cruciferous biennial herb. Basal leaves larger, stipitate, leaf blade oblong-ovate, stem leaves oblong or oblong-lanceolate, margin toothed, leaf base arrow-shaped. The root is cylindrical, slightly curved, about 8 to 16 cm long, 3 to 8 mm in diameter, brown on the surface, slightly enlarged in the root head,