aerial aeroplane airplane angles appearance arial arid aridity below brine brine-lake bushland central-Australia country-side distance distant dry-salt-crust expanse extensive from-above height high huge isolated Lake-Amadeus landscape looking-down outback panoramic panoramic-views Pantu plain remote rough rugged saline saline-lakes salt-lake salt-lakes-chain saltpans scenery scenic sparse terrain travel travelling vegetation all-weather-space bark bottle-shaped bottle-tree branched ceiba-chodatii conservatory deciduous display displayed distinctive dome exotics floss-silk-tree flower-dome gardens Gardens-by-the-Bay glasshouse gnarled greenhouse grotesque horticultural horticulture indoors inside palo-borracho shape shaped shapes Singapore South-American stored-water subtropical surface surfaces swollen-trunk texture textures tree tropical trunk unusual utilitarian warty-tree abundant appearances castor-beans castor-oil castor-oil-plant castor-seeds cluster clusters common cotyledons Euphorbiaceae fast-growing flower flowers foliage highly-toxic inflorescences invasive large large-leaves leaf leaves medicinal palm-of-Christ palma-Christi poison poisonous ricinus-communis seed-pods seedhead shrub shrubbery spiky-green-seed-capsule spiny textured toxic toxins wasteland-weed weed widespread