In addition, the petals also have heavy brownish-black spots. The flowers are non-fragrant. "Lilium iridollae" and many other related species are pollinated mostly by large swallowtail butterflies. In addition, this plant is also attractive to bees and/or birds. When pollination occurs, a large seed capsule ultimately develops that can contain many hundreds of seeds. "Lilium iridollae" are deciduous and they return to its bulb stage in late fall. Near early spring, brand new leaves form and they develop into a basal rosette immediately. In late spring, the basic rosette begins to elongate. Then by mid- to late-July they being to flower. Seed is light brown and delayed-hypogeal without stratification in 1–2 months. There are often situations where Native lilies neglect to flower if the conditions are not right. In that case, they might spend years appearing each spring as a basal rosette of leaves. In addition, young plants, in optimal conditions, take more than two years to develop into a flower from a seed because they mature at a slow pace. "Lilium iridollae" is closely related to "Lilium superbum" or referred by common names such as Turk’s Cap Lily, Turban Lily, Swamp lily or American Tiger Lily. "Lilium superbum" has dark orange, non-fragrant flowers with purple spots. It has leaves in 6 - 10 whorls on a 6 - foot stem. "Lilium michauxii" or Carolina Lily is another species similar to "Lilium iridollae". "Lilium michauxii" has flowers that resemble flowers of Turk’s Cap Lily, but the differences are that the flowers are fragrant and the stem is only 2 – 3 feet tall. In addition, the leaves are broadly lance-shaped. Since "Lilium iridollae" has become an endangered and threatened species there are ways to protect and manage them. One way is to protect streams from siltation or sedimentation during logging and road construction. In addition, avoid logging on slope forests. Furthermore, avoid draining and filling wetlands. Since wildfires benefit "Lilium iridollae", we should avoid placing firebreaks in ecotones. The wildfires should be allowed to burn into edges of streamside forests. Lastly, eradicate feral hogs because they can be harmful.