mesembs (lithops bromfieldii v. insularis 'sulphurea') south african plant

africa aizoaceae arid areas bromfeldii bromfieldii bulbous leaves camouflage collection desert plant exotic fleshy flora gems gemstones green growing house plants houseplant insularis julii lithops aucampiae living stone stones mesembs miniature namibia natural nature ornamental pebble south african species like succulent succulents sulphurea supersucculent xeric