Meaning of name: Xanthorrhoea is from the Greek words xanthos, meaning yellow, and rheo, meaning to flow. It refers to the gum which flows from the stem. Brunonis honours Robert Brown (1773 – 1858), a naturalist on Flinders’ expedition.
Distribution: Occurs on the Swan Coastal Plain north and south of Perth.
Remarks: A tufted perennial with leaves to 80 centimetres long. The flowers are produced in October and November. This species can be differentiated from Xanthorrhoeae preissii by its flower. The non-flowering part of the stem is always longer than the flowering part in Xanthorrhoea brunonis.
References: Western Australian Plant Names and their Meanings, a Glossary. FA Sharr. 1996.
Flora of the Perth Region. NG Marchant, JR Wheeler, BL Rye, EM Bennett, NS Lander, TD Macfarlane. 1987.