Xanthorrhoea acanthostachya D.J.Bedford

Trunk to 1.5 m long; crowns 1 or 2, ±hemispherical. Leaves quadrate-rhombic in T.S., 2-2.3 mm wide, 1.5-2 mm thick, green to slightly blue-green, slightly glaucous. Scape 40-50 cm long, 7-16 mm diam. Spike ±equal in length to scape, 40-50 cm long, 20-40 mm diam. Cluster-bracts very prominent, rarely only slightly prominent, very elongated, subulate, glabrous, sometimes subglabrous. Packing-bracts subulate or almost so, often twisted or folded, glabrous to subglabrous. Sepals shortly acute, beaked, without proboscis, glabrous. Petals ±erect, sometimes beaked, with proboscis, glabrous except hairs in beak.

Grows in lateritic soil and in grey sand overlain with lateritic gravel.