grass tree

Xanthorrhoea preissii, with the common name Blackboy, is a widespread species of perennial monocot in Southwest Australia. This plant, and other members of the genus Xanthorrhoea, currently contained by the Xanthorrhoeaceae family, are also known as grasstrees. The form of the plant resembles a tree, with very long and bunched, grass-like, leaves that emerge from a central base.