Cornwall is the county that forms the tip of the southwestern peninsula of England; this area has a mild and warm climate regulated by the Gulf Stream. The mild climate allows rich plant cover, such as palm trees in the far south and west of the county and in the Isles of Scilly, due to sub-tropical conditions in the summer.
On Cornwall's moors and high ground areas the high elevation makes tree cover impossible because of the wind, so these areas are populated by shrubs and bushes such as gorse and heather. Ferns, mosses, liverworts, lichens and fungi can all be found in the county. In the wettest areas of Bodmin Moor, sphagnum or bog moss can be found.
Cornwall is home to many rare flower species, especially at the southern end of the Lizard, due to its unique soil and geology. On the Lizard Peninsula, Cornish heath – the floral emblem of Cornwall – mesembryanthemums, butcher's broom, early meadow grass and a wide range of clovers including the Lizard clover, brookweed and yellow wallpepper can be found. The north coast of Cornwall features maritime grassland, heathland and stunted woodland.