Urceolina × grandiflora
Urceolina × grandiflora, formerly known as Eucharis × grandiflora, is a natural hybrid putatively between U. moorei and U. sanderi of the family Amaryllidaceae, native to western Colombia and western Ecuador.
The aneutriploid species U. amazonica is often misidentified as U. × grandiflora. Both of them are sterile plants with large fragrant white flowers, but they differ in leaf length, free filament shape, and staminal cup length:U. × grandiflora has shorter leaf blades, linear or narrowly subulate free filaments, and staminal cups shorter than free filaments.U. amazonica has longer leaf blades 30–40 cm ×, subulate free filaments, and staminal cups longer than free filaments.