lilium superbum(n = noun.plant) turk's-cap, turk's cap-lily - lily of the eastern United States with orange to red maroon-spotted flowers;
is a kind of lily

genus lilium, leucanthemum superbum, lilium, lilium auratum, lilium canadense, lilium candidum, lilium catesbaei, lilium columbianum, lilium lancifolium, lilium longiflorum, lilium maritinum, lilium martagon, lilium michiganense, lilium pardalinum, lilium philadelphicum