Yucca flaccida, commonly called Adam's needle or weak-leaf yucca, is a species of flowering plant in the asparagus family (Asparagaceae). It is native to south-central and southeastern North America, from the lower Great Plains eastward to the Atlantic seaboard in Virginia, south through Florida and the Gulf states. Its natural habitat is in sandy open woodlands and fields. It is not considered to be threatened by the IUCN.