忍冬是我们比较熟悉的植物,特别是它的药用功能,自古以来就很著名。它是多年生半常绿左旋缠绕藤水,长可达9米以上。藤幼时绿色,密被短柔毛,木质化后呈棕褐色,老藤浅棕灰色,随着生长,外皮条状脱落。叶对生(偶见轮生),卵形或椭圆状卵形或披针形(图1),偶见裂状叶(图2)。花成对腋生,苞片叶状,盛开时雌雄蕊均伸出花冠外(图3)。花初开白色(有的略带紫晕),后转为黄色(图 Lonicera is a plant we are more familiar with, especially its medicinal function, which has been famous since ancient times. It is perennial semi-evergreen left-handed winding vine water, up to 9 meters long. When rattan is young, green, densely pubescent, lignified after brown, old rattan light brown gray, with the growth of the outer strip stripped. Leaves opposite (occasionally whorled), ovate or elliptic-ovate or lanceolate (Figure 1), occasionally cracked leaf (Figure 2). Pairs of axillary flowers, bracts leaflike, stamens are in full bloom out of the corolla outside (Figure 3). Flower early open white (some slightly purple halo), then turned yellow (Figure