Yucca carnerosana

Yucca carnerosana, commonly known as the giant Spanish dagger, is a species of North American plant in the asparagus family. In the United States, it is confined to only a few counties in western Texas. The species is, however, widely distributed in northern Mexico (Coahuila, Durango, Zacatecas, Nuevo León). It has a wide range and is abundant, and although it has local threats, its population appears to be stable overall.
This yucca is cultivated in a few areas such as the Western United States and southern Europe, as well as other locations.
"Yucca carnerosana" is branched and arborescent, up to 20 feet tall, with snowy white flowers.