White Rain-lily flower, Zephyranthes candida, family Amaryllidaceae

"Zephyranthes candida" is a species of rain lily native to South America including Argentina, Uruguay, Paraguay, and Brazil. The species is widely cultivated as an ornamental and reportedly naturalized in many places, Bhutan, Solomon Islands, Queensland, Nauru, Tonga, Society Islands, Mariana Islands, southeastern United States, the Lesser Antilles, and Peru).