Amazon lily

Eucharis is a genus of about 15-20 species of Neotropical plants in the Amaryllis family, native to Central America and South America, from Guatemala south to Bolivia. Some species have become naturalized in Mexico, the West Indies, and scattered tropical islands. The English name Amazon lily is sometimes used for all species in the genus (as well as other genera),[5] but is particularly used for Eucharis amazonica and Eucharis × grandiflora, which are often confused https://en.wikipedia.org/wiki/Eucharis_(plant)