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啤酒花(Humulus lupulus L.)桑科,又叫蛇麻花。多年生缠绕草本,茎、枝和叶柄密生细毛,并有倒剌。叶纸质,对生,卵形,基部心形或圆形,不裂或3～5深裂,边缘具粗锯齿,上面密生小剌毛,下面有疏毛和黄色小油点;叶柄长不超过叶片。花单性,雌雄异株;雄花排列成圆锥花序,花被片和雄蕊各5;雌花每2朵生于苞片腋部,苞片覆瓦状排列成一近圆形的穗状花序。果穗呈球果状;宿存苞片膜质且增大,有油点,近无毛,内包扁平的瘦果1或2个。
Hops (Humulus lupulus L.) Sankoh, also known as the hop. Perennial entwined herbs, stems, branches and petioles dense hair, and have assassination. Leaves papery, opposite, ovate, base cordate or rounded, not cleft or 3--5-parted, margin coarsely serrate, densely punctate above hair, below sparsely hairy and yellowish ointment; petiole long Over the leaves. Flowers unisexual, dioecious; male flowers arranged in panicles, perianth and stamens 5; 2 per female flowers were born in bracts axillary, bracts imbricate arranged in a nearly circular spikes. Fruiting spike-shaped; persistent bracts membranous and enlarged, with oil spots, nearly glabrous, flattened orchards containing 1 or 2 achenes.