Hymenocallis imperialis

Hymenocallis imperialis, common name Big Fatty, is a plant species native to the Mexican states of San Luis Potosí and Hidalgo. It is also cultivated in other regions as an ornamental.

Description
Hymenocallis imperialis is a bulb-forming perennial producing sword-shaped leaves and an umbel of large white or yellow flowers.

Etymology
The specific epithet imperialis means imperial, stately, or grand.