Leontopodium nivale, commonly called edelweiss (Alpen-Edelweiß, English pronunciation ˈeɪdəlvaɪs), is a mountain flower belonging to the daisy or sunflower family Asteraceae. The plant prefers rocky limestone places at about altitude. It is non-toxic and has been used in traditional medicine as a remedy against abdominal and respiratory diseases. Its leaves and flowers are covered with dense hairs, which appear to protect the plant from cold, aridity, and ultraviolet radiation. It is a scarce, short-lived flower found in remote mountain areas and has been used as a symbol for alpinism, for rugged beauty and purity associated with the Alps and Carpathians. It is a national symbol, especially of Romania, Austria, Slovenia, Switzerland, and Italy. According to folk tradition, giving this flower to a loved one is a promise of dedication. The flower's common name Edelweiß is German, and is a compound of edel "noble" and weiß "white". Slovenian name is planika, meaning mountain girl. In Romania, it is known as floare de colț, which means 'cliffhanger's flower.' The flower is referred to as Stella Alpina in the Italian-speaking Alps and étoile des Alpes in the French Alps, meaning 'star of the Alps.' Edelweiß was one of several regional names for the plant and achieved wide usage during the first half of the 19th century in the context of early Alpine tourism. Alternative names include Chatzen-Talpen ("cat's paws") and the older Wullbluomen ("wool flower," attested in the 16th century). The scientific name Leontopodium is a latinisation of the Greek leontopódion, "lion's paw". The Latin specific epithet nivale means "white". Since 1822, Leontopodium has no longer been considered part of the genus Gnaphalium, but classified alongside it as a distinct genus within the tribe Gnaphalieae. In 2003, Leontopodium alpinum was re-classified as a subspecies of Leontopodium nivale. Thus, the alpine edelweiss is currently recognized as being divided into two subspecies, Leontopodium nivale subsp. alpinum (Cass.) Greuter and Leontopodium nivale subsp.