Michigan Lily - Lilium michiganense

Lilium michiganensis, also known as Michigan Lily, is a perennial wildflower native to Michigan. Plant reaches 2 to 5 feet and flowers in summer with between one and eight showy orange, speckled, nodding blossoms. It prefers full sun and rich, moist, humusy soil, but does fine in average, medium, well-drained soils in full sun to light shade. Tolerant of clay, but too much fertilizer can cause flopping. Plant in a grouping for best effect.
 
According to Illinois Wildflowers, "the large showy flowers appear to be designed to attract hummingbirds and larger day-flying insects, such as Sphinx moths, Hummingbird moths (Hemaris spp.), and the larger butterflies. Robertson (1929) observed such butterflies as the Monarch (Danaus plexippus), Great Spangled Fritillary (Speyeria cybele), and Spicebush Swallowtail (Papilio troilus) visiting the flowers for nectar."