The Cape of Good Hope is an integral part of the Cape Floristic Kingdom, the smallest but richest of the world's six floral kingdoms. This comprises a treasure trove of 1100 species of indigenous plants, of which a number are endemic (occur naturally nowhere else on earth). The main type of fynbos (fine bush) vegetation at the Cape of Good Hope is Peninsula Sandstone Fynbos, an endangered vegetation type that is endemic to the Cape Peninsula. Coastal Hangklip Sand Fynbos grows on low-lying alkaline sands and, right by the sea, small patches of Cape Flats Dune Strandveld can be found.