Lilium bulbiferum, Switzerland. This species is common in the mountains of central and southern Europe from the Pyrenees up to the northern Balkans. These plants grow in mountain meadows and rocks. They prefer calcareous soils in warm, sunny places, but also grows on slightly acid soils. They can be found at an altitude of 500–1,900 metres (1,600–6,200 ft) above sea level.