berries bush crataegus England english field fruits haws hawthorn hill landscape meadow natural nature red shrub South Downs summer Sussex wild access barrier clouds countryside entrance exercise footpath gate Great Britain sky walk wooden abundance abundant Apiaceae Bedfordshire damp flowers many profusion riverside spring umbellifer white branch current danger flow green powerful river strong surge surging thames tree violent water arch chalk cliff coast face hole kent low peephole rock sea shore stone tide crop farm grass peace plain rural view woodland Cornish cornwall flora gorse spiny Ulex yellow cloud cold freezing icy mountains norway norwegian plateau road shadow snow snowy blue flax flower linseed linum Australia Ayer's Rock harsh hot massif mountain plant sandstone terrain Uluru vegetation