Doryanthes is the sole genus in the flowering plant family Doryanthaceae. The genus consists of two species, D. excelsa (gymea lily) and D. palmeri (giant spear lily), both endemic natives of the coast of Eastern Australia., p. 312 Doryanthaceae is part of the order Asparagales (the asparagoid lilies).
Plants grow in a rosette form, only flowering after more than 10 years. They enjoy a warm environment, good soil, and much water during the warmest time of the year.
The family Doryanthaceae, placed in the order Asparagales of the , has only recently been recognized by taxonomists. Formerly the genus was usually placed in the family Agavaceae, now the subfamily Agavoideae of the family Asparagaceae.
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