Blue flax-lily

''Dianella caerulea'', commonly known as the blue flax-lily is a perennial herb of the family Asphodelaceae, subfamily Hemerocallidoideae, found across the eastern states of Australia and Tasmania. It is a herbaceous strappy perennial plant to a metre high, with dark green blade-like leaves to 70 cm long. Blue flowers in spring and summer are followed by indigo-coloured berries.