Amazon lily

Wiktionary

1. n. a bulbous plant, Eucharis amazonica, of the family Amaryllidaceae, having tight, compact rosettes of glossy green leaves and tall spikes of white, fragrant flowers
2. n. a giant water lily, Victoria amazonica, with circular leaves of up to 8 feet in diameter having large white female flowers that bloom at night, and change to pink male ones the next night.