黄藤别名黄莲藤、大黄藤,为防己科植物黄藤的干燥藤茎。《本草纲目》记载:“黄藤生岭南,状若防己。俚人常服此藤,纵饮食有毒,亦自然不发。”黄藤长达10m,枝灰棕色,小枝有纵条纹。叶互生,卵形或长椭圆形,长约10~20cm,宽4~10cm,先端锐尖,全缘,基部圆形,革质,上面绿色,下面色较淡;叶柄长4~12cm;圆锥花序,花单性,花被片8~12,核果长椭圆形2~3cm,内果皮木质。黄藤喜温,不耐寒,主要分布广东、海南、广西等 Yellow cane alias lotus root, large yellow cane, for the prevention of the dry branches of yellow cane vine. “Compendium of Materia Medica” records: “Huang Teng students Lingnan, the shape of self-defense. Slang ordinary service of this vine, indulgence diet, but also naturally not hair.” "Huang vine up to 10m, gray-brown branches with vertical stripes. Leaves alternate, ovate or oblong, about 10 ~ 20cm, width 4 ~ 10cm, apex acute, entire, base rounded, leathery, green above, the following pale color; petiole 4 ~ 12cm; Inflorescences, flowers unisexual, perianth 8 ~ 12, drupe oval 2 ~ 3cm, endocarp woody. Winterthur temperature, not cold, mainly in Guangdong, Hainan, Guangxi and so on