Chocolate lily - Dichopogon strictus

The species has up to 12 leaves that are linear or lanceolat in shape and are up to 65 cm long and 1-12 mm wide. The racemose inflorescence is up to 1 metre high. This appears between August and January in the species native range. The individual, drooping flowers range in colour from pale mauve to dark purple. The common name ( chocolate lily) alludes to the scent of the flowers which resembles chocolate, caramel or vanilla. The tubers , which are juicy and slightly bitter in taste, were eaten by Aborigines.
( copy from Wikipedia )