长生草(Sempervivum tectorum)系景天科长生草属多年生常绿草本,主要分布在法国、意大利、西班牙等欧州国家。株高15厘米—20厘米,叶肉质,长倒卵形,顶端尖,叶表及叶缘多毛,从生,莲座状。叶盘上的须根附着于地面。在6-7月开花,花粉红色,雌雄同株,虫媒传粉,种子7-8月成熟。 长生草株形不大,但变种很多,形态也有很大变化。植物呈低矮 Sempervivum tectorum is a perennial evergreen herb of Sedum, which is mainly distributed in European countries such as France, Italy and Spain. Plant height of 15 cm -20 cm, leaf succulent, long obovate, apical tip, leaf surface and leaf margin hairy, from raw, rosette-like. The fibrous roots on the leaf disks attach to the ground. In June-July flowering, pink flowers, monoecious, insect vector pollination, the seeds mature in July-August. Stemform grass is not large, but a lot of variants, morphology also has great changes. Plants are low