common houseleek - sempervivum tectorum

-chicks alpine alpine_gardens alps alternative angiospermae botanical botany bud ciliate common common_houseleek crassulaceae earwort flora flower flowering garden gardening gardens green hens- herbal herbal-medicine herbalism homeopathy houseleek houseleeks medicinal medicinal_plant medicine mountain natural nature nubs perennial pharmacognosy phytomedicine phytotherapy plant rock rock-garden rockery rockwork roof rosettes saxifragales sempervivum sempervivum_tectorum shoots stone succulent sucker summer tectorum thunderplant vegetation