Doryanthes excelsa, commonly known as the gymea lily, is a flowering plant in the family Doryanthaceae that is endemic to coastal areas of New South Wales near Sydney. It has sword-like leaves more than 1 metre (3 ft) long and it grows a flower spike up to 6 metres (20 ft) high. The apex of the spike bears a large cluster of bright red flowers, each 10 centimetres (4 in) across. Its common name is derived from the name given to the plant by the indigenous [Dharawal] people. The Sydney suburbs of Gymea and Gymea Bay are named after the lily.