abstract Botanical Garden bush bushes colours garden glimmering glittering nature plants psychedelic spruce tree trees Acer pseudoplatanus England english flowering plant flowers fruit Great Britain keys natural plant sycamore twig blossom blossoms flower gardening park petals pink rhododendron spring beam biology botany cell cross-section culm haulm lime tree linden magnification microscope stalk allergie bloom branch Canoe birch ice pollen seeds snow winter woody plant forest grass green Alta Verapaz Guatemala wood background cutted firewood logging logs lumber pile structure texture wallpaper wood-shed wooden