coast Cornish cornwall cowslips England english flora flowers Great Britain May natural nature Primula veris spring wild yellow blue bluebells fresh green Hyacinthoides Sussex trees wood woodland carpet Hyacinthoides non-scriptum ash background branches Fraxinus leaf leaves texture tree beach canada coastline ocean pattern rill sand sea seawater shore streaming Vancouver Island water wave low mussels Mytilus rock rocky tide view Armeria maritima coastal pink purple rocks thrift countryside gorse habitat heath heather heathland ling Ulex Israel kinneret lake Lake of Gennesaret Lake Tiberias Sea of Galilee bark Castanea chestnut cracked fissured old rough trunk