Cooperia drummondii Herb.

Cooperia drummondii Herb.. Zephyranthes chlorosolen, known by a number of common names including Drummond's rain‑lily, evening rain‑lily, evening star rain lily, Brazos rain‑lily, Texas rainlily, and cebolleta, is a species of flowering plant in the family Amaryllidaceae. It is found from Kansas to Mexico, and has been introduced to southern Brazil. A geophytic perennial typically 18 to 35 cm tall, its lone flower opens in the evening and lasts only a few days.