About Xanthorrhoea concava (A.T.Lee) D.J.Bedford
Xanthorrhoea concava, commonly called grasstree, has no visible above-ground trunk. It branches below the ground and can produce multiple crowns. Its leaves are greyish to bluish-green, measuring approximately 3 to 6 millimeters (0.12 to 0.24 inches) wide and 1.5 to 2 millimeters (0.059 to 0.079 inches) thick. The plant’s scape is 0.5 to 2 meters (1 foot 8 inches to 6 feet 7 inches) long, with a diameter of 1.5 to 3 centimeters (0.59 to 1.18 inches). The flower spike is half the length of the scape, reaching 50 to 90 centimeters (20 to 35 inches) long, with a diameter matching the scape at 1.5 to 3 centimeters (0.59 to 1.18 inches). This species grows in south-eastern New South Wales, ranging from the Sydney region south to Eden. It is most often found on seasonally waterlogged sites.
