any plant of the Australian genus Xanthorrhoea, having a woody stem, stiff grasslike leaves, and a spike of small white flowers: family Xanthorrhoeaceae. Some species produce fragrant resins
See also acaroid gum
2.
any of several similar Australasian plants
grass tree in American English
any of a genus (Xanthorrhoea) of plants of the grass-tree family, native to Australia, with short, thick, woody trunks and grasslike leaves: some produce fragrant resins
grass-tree in American English
(ˈgræsˌtri)
adjective
designating a family (Xanthorrhoeaceae, order Liliales) of monocotyledonous plants