adansonia gregorii Australian baobab Australian boab barrel trunk boab boab tree bottle tree brown-gray brown-grey dead rat tree deciduous distinctive gadawon gouty stem tree grotesque indigenous Kimberley native large road verge shape slow-growing smooth bark soft fibrous wood trunk useful verge water retention abstract appearance backdrop background cracked cracks creased creases grained grains gray grey light lines palm-bark palm-tree palm-trunk texture textured textures timber uneven wood wood-grain wood-textures wooden alongside bark brown colors colours connected curved danger dirty exposed exterior grit natural nature outside pattern peeling Roots rough rustic surface surfaced surfaces tight trees trip-up alone autumn branches color colour England english fall field golden Great Britain isolated landscape leaves lone lonely meadow oak one Quercus russet rusty single sunlight Sussex tawny tree yellow.copper blooms bonsai colored coloring coloured colouring controlled cultivated culture decoration decorative flowering flowers formed miniatures petals plants potted potted-plants pruned shaped shapes trimmed trunks