Armeria maritima coast Cornish cornwall England english flora flowers Great Britain May natural nature pink red spring thrift wild biotype bushes ecology euphorbia Greece Greek habitat harsh hillside karst landscape limestone plants rocks rocky rough footpath forest moss path sunlight Sussex track trail trees trunks wood woodland Cardamine pratensis Cruciferae Lady's smock mauve petals plant white alone cloud farm field lone lonely one single sky tree winter blue boat canada green hill houseboat island mountain ocean sea Vancouver Island water background coastal creeping cyprus dry flat low maquis mat mediterranean parched sand scrub stems texture ancient calm historical house moat old peace placid protect security