on the Kholo Road to Lake Manchester outside Brisbane. Plant of the genus Xanthorrhoea of the family Xanthorrhoeaceae, with about 17 species native to eastern Australia. They have thick, woody, often palmlike stems about 5 m (16 feet) tall that end in a tuft of rigid, grasslike leaves from which flower spikes resembling those of the bulrush extend 3m or more.
Grass Trees are very slow growing and a tree with a 1 metre trunk could be in the vicinity of 100 years old depending on the water and available mineral content of the soil the tree has been growing within. The tall one in the shot is about two metres.
The trees are also known as grass gums because of the red or yellow gumlike resins that exude from the bases of old leaves. The resins are used for varnish. In some areas grass trees are known as yaccas (or yuccas) and as blackboys.