Agaves: The Genus Agave
Desert Lilies: Hesperocallis undulata
Quixote Plant, Chapparal Yucca: Hesperoyucca whipplei (Synonyms: Yucca whipplei; Hesperoyucca whipplei var. graminifolia; Yucca californica; Yucca graminifolia; Yucca nitida; Yucca ortgiesiana; Yucca whipplei subsp. caespitosa; Yucca whipplei var. caespitosa; Yucca whipplei subsp. intermedia; Yucca whipplei var. intermedia; Yucca whipplei subsp. parishii; Yucca whipplei var. parishii; Yucca whipplei subsp. percursa; Yucca whipplei var. percursa)
Yuccas: The Genus Yucca