Xanthorrhoea(redirected from grass tree)
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Australian plant genus in the family Xanthorrhoeaceae; contains an unidentified toxin which causes posterior incoordination (wamps) with urinary incontinence in cattle; have also caused red coloration of urine; flower spikes most toxic. Includes X. australis, X. fulva (X. hastile, X. hastilis), X. johnsonii, X. minor subsp. lutea. Also called grasstree, blackboy.