abstract appearance Australian background black boy bush bushland descending fronds grass tree green layered layers leaf leaves light lines outback plant slow-growing spiky spiny leaves standing straight strands sunlight texture unusual upright vegetation wallpaper Xanthorrhoea backdrop bright brown colored coloring colors coloured colouring colours contrast contrasting five-petalled flora flower golden greenery growth individual petals shadow shrub single textures yellow cool decorative density ferns foliage garden horticultural horticulture light-green lighting nature patterns plants shade shapes spread spreading variation display gray grey native shrubbery shrubs silvery sunshine surface surfaces variations variety color colorful colour colourful flowers furry garden-flowers patterned purple ribbed soft textured veined veins Australia central-Australia desert-country desert-region dry height high hill hot inland rocks rocky rough rugged rustic scrub sky stepping-stones steps terrain trees bush-foliage distinctive hardy native-plant abundant basic bulk carbohydrate common crop diet fiber fibre food gourmet minerals Nadine oval perennial potato potatoes quantity skin small small potatoes solanum tuberosum spud staple starch starchy tuber tuberous vegetable vitamins