See article Zephyranthes atamasca, commonly known as the atamasco-lily or more generally a rain-lily,[1] is native to the southeastern United States.

It grows in swampy forests and coastal prairies, preferring acid boggy soils rich with leaf mold.

Following the appearance of broad, grassy leaves in early winter, it blooms in March or April.

In 1753, in the first edition of Species Plantarum, Carl Linnaeus placed it in the genus Amaryllis using the epithet "Atamasca" (the capital "A" showing that this was intended as a noun, not an adjective).

However, the International Code of Nomenclature for algae, fungi, and plants conserves the type of Zephyranthes using the spelling atamasca.