|Turk's cap lily|
|Lilium superbum in the Great Smoky Mountains National Park, North Carolina|
Lilium superbum is a species of true lily native to the eastern and central regions of North America. Common names include Turk's cap lily, turban lily, swamp lily, lily royal, or American tiger lily. The species is native from New Hampshire south to Florida and west to Missouri and Arkansas.
Lilium superbum grows from 3–7 feet (0.91–2.13 m) high with typically three to seven blooms, but exceptional specimens have been observed with up to 40 flowers on each stem. It is capable of growing in wet conditions. It is fairly variable in size, form, and color. The color is known to range from a deep yellow to orange to a reddish-orange "flame" coloring with reddish petal tips. The flowers have a green star at their center that can be used to distinguish L. superbum from the Asiatic "tigerlilies" that frequently escape from cultivation.
- Blanchan, Neltje (2005). Wild Flowers Worth Knowing. Project Gutenberg Literary Archive Foundation.
- "USDA GRIN Taxonomy". Retrieved 20 December 2014.
- Synge, Patrick M. Collins Guide to Bulbs. (1961)
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