Dasylirion leiophyllum is a species of flowering plant in the asparagus family known by the common names green sotol, smooth-leaf sotol, and smooth sotol. It is native to North America, where it occurs in Chihuahua and Coahuila in Mexico and New Mexico and western Texas in the United States. Mature individuals of this species can ignite and burn for hours if hit by lightning. Fire can then spread through the habitat if the burning top of the plant falls off and rolls down a hill. After the plant burns it can sometimes resprout from the buds at the leaf bases.