Xanthorrhoea arborea R.Br.

Trunk usually 1-2 m long; stem simple or branched; crown 1 to many, each an uneven hemisphere or older leaves falling away from new upright tuft. Leaves narrowly transverse-rhombic to transverse-linear or concave in T.S., 5-7 mm wide, 0.8-1.9 mm thick, green or dull green, glaucous. Scape 135-165 cm long, rarely to 210 cm, 12-16 mm diam. Spike 1/4 to as long as scape, 100-150 cm long, 25-28 mm diam. Cluster-bracts obscure. Packing-bracts shortly acute, occasionally acute, fringed to moderately hirsute. Sepals shortly acute, without proboscis, beaked, usually subglabrous to ±abaxially hirsute. Petals recurved, with proboscis, glabrous except a terminal tuft of very short hairs.

Grows in sand or on sandstone, usually in sheltered sites.

Plants are grown from seed. Seed germinate readily.