S. australiensis may refer to: Scoparia australiensis, a moth in the family Crambidae Selaginella australiensis, a plant in the spikemoss family Selaginellaceae Semecarpus australiensis, the tar tree, a species of tree in the family Anacardiaceae Solinus australiensis, a species of pseudoscorpion in the family Garypinidae Storckiella australiensis, a species of large rainforest tree in the family Fabaceae Sundochernes australiensis, a species of pseudoscorpion in the family Chernetidae Sutorius australiensis, a species of bolete mushroom