Acer blue bluebell carpet England evening flower Hyacinthoides nature non-scripta shadow sunlight Sussex tree woodland "comp03" green leaves purple sky Spring flowers white wild grass Wild Iris wild mountain loop bank Devon english ferns fronds Great Britain natural plants Pteridophyta shaded shady wild Alchemilla alpina Alpine lady's mantle flowers herb leaf norway norwegian plant texture fan fan palm frond large madeira palm Palmae showy spectacular ancient botanic botany cycad Cycadophyta cycads garden park prehistoric abstract background cracks crannies greenery growth hollows limestone moss nooks pitted rock rough sprouting surface textures vegetation downland Lamiaceae summer thyme thymus