Congea and Sempervivum, are which type of items?
Sempervivum Sempervivum (Brit. , U.S. sem-per-VEE-vum) is a genus of about 40 species of flowering plants in the Crassulaceae family, commonly known as houseleeks. Other common names include liveforever (the source of the taxonomical designation "Sempervivum", literally "always/forever alive") and hen and chicks, a name shared with plants of other genera as well. They are succulent perennials forming mats composed of tufted leaves in rosettes. In favourable conditions they spread rapidly via offsets, and several species are valued in cultivation as groundcover for dry, sunny locations.
Cetrimide Cetrimide is an antiseptic which is a mixture of different quaternary ammonium salts including cetrimonium bromide (CTAB). It was first discovered and developed by ICI and introduced under the brand name "Cetavlon". It is used as a 1-3 % solution for cleaning roadside accident wounds. Another antiseptic chlorhexidine was also discovered and first developed by ICI. ICI also introduced Savlon which was a combination of cetrimide and chlorhexidine. ICI later sold the Savlon brand OTC to Johnson & Johnson in May 1992.