Hardenbergia is a small genus of leguminous vines from Australia. The genus was named in honour of Franziska, Countess von Hardenberg (sister of Baron von Huegel) by English botanist George Bentham, in 1837.
Hardenbergia violacea is a species of flowering plant in the pea family Fabaceae, native to Australia from Queensland to Tasmania. It is known in Australia by the common names false sarsaparilla, purple coral pea, happy wanderer, native lilac and waraburra (which comes from the Kattang language). Elsewhere it is also called vine lilac or lilac vine.