|1.||See also acaroid gum black boy, yacca, Also called: yacka 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|
|2.||any of several similar Australasian plants|
any 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 3 m or more.
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