Yucca newberryi McKelvey, Yuccas Southw. U.S. 2: 49. 1947; Y. whipplei Torrey subsp. newberryi (McKelvey) Hochstätter

Plants monocarpic; rosettes single. Leaves 50–60 × 0.7–2 cm wide at base in narrow forms, 2–2.5 cm in broader forms. Scape 1.4–1.6 m × 10–14 cm diam. Inflorescences 14–16 dm, 4–5.5 dm at widest point. Capsules with slight or inconspicuous placental wings at maturity.

Flowering spring. Desert, rocky granite, western slopes of Colorado River Canyon; 400--1300 m; Ariz.

Hesperoyucca newberryi is found in Mohave County, in the vicinity of the Colorado River.