abstract Australian Australian-pine backdrop background beefwood branchlets bull-oak buloke cassowary-tree Casuarina coastal common drooping endemic equisetoid evergreen foliage hardy ironwood native needles salt-tolerant segmented-branchlets she-oak sheoak small-scale-leaves soft-needles species tree twigs variety various wallpaper weeping wind-tolerant Aizoaceae angular-pigface Cape-fig carpobrotus-glaucescens creeping-succulent daisy-like-flowers drought-resistant dune-stabilizer edible fire-resistant fleshy flora flower flowers food groundcover Hottentot-plant ice-plant invasive medicinal nutritional open perennials pigface pink-purple plant plant-mat prostrate salt-substitute sand-dunes sand-stabilizer smooth-leaves sour-fig strand-ivy succulent sunlight sunshine thick triangular-leaves yellow bee bees insect insects green grey hill landscape maquis Sardinia vegetation