Lomandra nigricans T.D.Macfarl.

Tussocks narrow. Leaves channelled to semiterete, 25-70 cm long, 1-3 mm wide, glabrous; apex rounded; sheath margins at first intact and white or nearly transparent, later finely lacerated and dark brown to purplish black. Male inflorescence branched or unbranched, at least half the leaf length; scape equalling or longer than rachis; flower clusters in distant whorls, the whorls of branches and flowers at least 2 cm apart. Female inflorescence similar but often unbranched. Bracts broad, acute, shorter than pedicel; inner bract sometimes absent. Male flowers c. 2.5-4 mm long; sepals and petals nearly equal, white with purple markings, petals slightly thicker; pedicel 2-7.5 mm long. Female flowers similar; pedicel absent or up to 0.8 mm long.

Grows in eucalypt forest on laterite, eucalypt or banksia woodland on sand and in shrubland on black peaty (sometimes swampy) or lateritic sands.