This is a list of the species in the genus "Yucca". They are commonly called yuccas in English, but are also called "Adam's needle" or "Spanish-bayonet".
 Plants of the World Online (POWO) and World Flora Online both list 50 valid species. In addition, POWO lists three other species, "Yucca jaegeriana" , "Yucca muscipula" , and "Yucca pinicola" , that WFO lists as unchecked or as a synonym of another species. There are also two natural hybrids, "Yucca" × "schottii", which was formerly listed as a species under various names, and "Yucca" × "quinnarjenii".