1	"Plant with trunk 0-3 m high; spike longer than the scape, 5-9 cm in diameter"	"Xanthorrhoea australis"
1	"Plant trunkless; spike shorter than to almost equalling the scape, 1.4-3.5 cm in diameter"	2
2	"Scape 30-50 cm long, 4-9.5 mm in diameter; spike 7.5-40 cm long, 1.4-3.0 cm in diameter; outer perianth segments glabrous or with a few hairs down the midnerve, apex obtuse with a blunt mucro"	"Xanthorrhoea bracteata"
2	"Scape 20-60 cm long, 8-11 mm in diameter; spike 7-40 cm long, 2-3.5 em in diameter; outer perianth segments glabrous, linear to spathulate, apex acute, tapering to a long beak"	"Xanthorrhoea arenaria"