. . "Plantae" . . . "Yucca necopina" . . "Yucca necopina Shinners" . . . "Agavaceae" . . "Yucca" . . "Liliopsida" . . . "Magnoliophyta" . "Shinners" . "Brazos River Yucca" . . "Asparagales" . . . . .