WikiBotanicals:Hesperoyucca

Hesperoyucca is a small genus of three species of flowering plants closely related to, and recently split from, Yucca, which is in the family Asparagaceae, subfamily Agavoideae.

Species
H. newberryi (Yucca newberryi)

H. peninsularis

H. whipplei (chapparal yucca, our Lord's candle or Spanish bayonet) is a species of flowering plant closely related to, and formerly usually included in, the genus Yucca. It is native to southern California, United States and Baja California, Mexico, where it occurs mainly in chaparral, coastal sage scrub, and oak woodland plant communities at altitudes of 300–2500m. Varieties:
 * H. w. var. whipplei
 * H. w. var. caespitosa