heather growing in rocks alongside the river meavy, dartmoor, plymouth, devon

boulder bouquet bracken bramble calluna canopy countryside dartmoor debris derbyshire devon ecology ecosystem environment fern ferns flora flower flowers foliage forest fronds grass habitat health heather heathland hiking hillwalker landscape leaves lowland meavy moorland moss mountains nature outdoors path people plant river rock summer torrent tree vulgaris water wild wildflower woods