''Yucca madrensis'' H. S. GentryGentry, Howard Scott. USDA Agriculture Handbook no. 399. Agave Family in Sonora. 159, fig. 62. 1972. is a plant in the genus Yucca in the family

Asparagaceae Asparagaceae, known as the asparagus family, is a family of flowering plants, placed in the order Asparagales of the monocots. The family name is based on the edible garden asparagus, ''Asparagus officinalis''. Those who live in the temperate c ...

. It is native to a mountainous region in the Sierra Madre Occidental in the Mexican states of

Sonora Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is d ...

and

Chihuahua Chihuahua may refer to: Places *Chihuahua (state), a Mexican state **Chihuahua (dog), a breed of dog named after the state **Chihuahua cheese, a type of cheese originating in the state **Chihuahua City, the capital city of the state **Chihuahua Mun ...

. It has also been reported from Arizona It grows on steep, rocky slopes in pine-oak forests. ''Yucca madrensis'' has indehiscent fruits and serrate leaves. This suggests relationships with '' Y. rigida'' Trel. and '' Y. schottii'' Engelm. It differs from both those species by several characters such as narrowness of the leaves, glabrous inflorescence, and short stature.Laferrière, Joseph E. 1990. The taxonomy and ethnobotany of ''Yucca madrensis''. Cactus & Succulent Journal (U.S.) 62:95-96.
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References

{{Taxonbar, from=Q2601642 madrensis Flora of Arizona Flora of Mexico Flora of Sonora Flora of Chihuahua (state) Plants described in 1972