airy angles appearances architectural architecture Australia Australian bird nesting botanic botanic gardens building city contrast craftsmanship decorated decorative Designs detailed distinctive elements exterior external fancywork frame frames framework garden gardens glass glass panes glasshouse heritage historic historical hothouse intricate light metal work old ornamental panes patterns perspectives prestige prestigious protection protective quality structures style supports trimmings windows Aboriginal-art-colors Aboriginal-art-colours adopted-in-1978 black color colored coloring colors colour coloured colouring colours crease creased creases desert-rose emblem emblematic fabric features flag floral-emblem folds gossypium-sturtianum material Northern-Territory ochre official Patriotic patriotism self-government seven-petals sign Southern-Cross stars Sturt’s-desert-rose stylised symbol textile white anthuriums araceae climbers coloration colorful colourful cultivars cylindrical-spike epiphytes evergreen exotic flamingo-flower flamingo-lily fleshy-spike flora flowerheads flowers glossy herbaceous humidity-loving hybrids inflorescence laceleaf modified-leaf painted-tongue perennials poisonous red shapes shield-shaped shiny smooth spadix spathe species surface surfaces surfacing tail-flower texture textures toxic toxicity tropical waxy