1) Garden plant 
Sempervivum arachnoideum Sempervivum armenum Sempervivum atlanticum Sempervivum ballsii Sempervivum borissovae Sempervivum calcareum Sempervivum cantabricum Sempervivum caucasicum Sempervivum ciliosum Sempervivum davisii Sempervivum dolomiticum Sempervivum erythraeum Sempervivum glabrifolium Sempervivum ingwersenii Sempervivum juvanii Sempervivum ...
• (n.) A genus of fleshy-leaved plants, of which the houseleek (Sempervivum tectorum) is the commonest species.
Sem`per·vi'vum noun (Botany) A genus of fleshy-leaved plants, of which the houseleek ( Sempervivum tectorum ) is the commonest species. 
Sempervivum 1. A widely grown ornamental garden plant that has rosettes of fleshy leaves with flowers that are pink, in clusters on stems. 2. Etymology: from the late 16th century; from modern Latin, a form of Latin sempervivus 'ever-living'.