Related to atamasco lily: rain lily
A bulbous plant (Zephyranthes atamasca) of the family Amaryllidaceae, native to the southeast United States and having a showy, solitary, white to pinkish flower on a long stalk.
[Virginia Algonquian attamusco.]
at′a•mas′co lil′y(ˈæt əˈmæs koʊ, ˌæt-)
a plant of the southeastern U.S., Zephyranthes atamasco, of the amaryllis family, bearing a single white lilylike flower sometimes tinged with purple.
[1620–30, Amer.; earlier attamusco < Virginia Algonquian]