ID is uncertain 
Yucca californica Nutt. ex Baker
Yucca macrocarpa Merriam， non Engelm.
Yucca mohavensis Sarg.
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Yucca schidigera Roezl ex Ortgies Mojave yucca
Mojave yucca is native to the Mojave and Sonoran deserts of southwestern North America. Plants: Many yuccas are acaulescent—they have no stem. But this one is a small tree, up to 8-16′ (2.5-4.8 m) tall (to a maximum of 30′ (9 m)), topped by a dense array of swordlike leaves. Bark is gray-brown, with a skirt of dead leaves near the top. Leaves: 12-59″ (30-150 cm) long × 1½-4″ (4-11 cm) wide at the base, tapering to sharp tips. They are thick, stiff, yellow- to blue-green, with wiry white filaments. Flowers: White, sometimes tinged with purple, urn-shaped, 1-3″ (3-7.5 cm) long, copious, on a central spike. Fruits: Seed capsules are dark brown or dull black, with six sections, roughly cylindrical, 1¾-4½″ (5-12 cm) long × 1-1½″ (3-4 cm) in diameter. See the Yucca page for a comparison with other yuccas. Online References:
The USDA Forest Service's Fire Effects Information Database DesertUSA: Exploring the Southwest References:
Irish, Mary & Irish, Gary, Agaves, Yuccas and Related Plants: A Gardener’s Guide, Timber Press, 2000, p. 268 Ingram, Stephen, Cacti, Agaves and Yuccas of California and Nevada, Cachuma Press, 2008, p. 172
5/2/2018 · Cottonwood Visitor Center, Joshua Tree National Park, California · ≈ 10 × 6″ (24 × 16 cm)
5/1/2018 · Joshua Tree National Park Visitor Center, Twentynine Palms, California
2/26/2010 · Torrey Pines State Park, La Jolla, California
2/26/2010 · Torrey Pines State Park, La Jolla, California
4/28/2018 · Scenic Drive, Red Rock Canyon, Nevada · ≈ 1 × 1½′ (34 × 52 cm)
4/28/2018 · Scenic Drive, Red Rock Canyon, Nevada · ≈ 1 × 1½′ (34 × 52 cm)
4/29/2018 · Red Spring Calico Basin, Red Rock Canyon, Nevada
2/26/2010 · Torrey Pines State Park, La Jolla, California
2/26/2010 · Torrey Pines State Park, La Jolla, California Yucca schidigera description by Thomas H. Kent, last updated 27 Oct 2023.
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4/29/2018 · Willow Spring Picnic Area, Red Rock Canyon, Nevada · ≈ 8 × 12″ (20 × 31 cm)
2/26/2010 · Torrey Pines State Park, La Jolla, California
4/28/2018 · Scenic Drive, Red Rock Canyon, Nevada · ≈ 8 × 5″ (20 × 13 cm)
4/28/2018 · Scenic Drive, Red Rock Canyon, Nevada
5/3/2018 · Park Blvd., Joshua Tree National Park · ≈ 6 × 4″ (15 × 10 cm)
5/2/2018 · Cottonwood Visitor Center, Joshua Tree National Park, California
5/2/2018 · Cottonwood Visitor Center, Joshua Tree National Park, California
4/28/2018 · High Point Overlook, Scenic Drive, Red Rock Canyon, Nevada
4/29/2018 · Willow Spring Picnic Area, Red Rock Canyon, Nevada
2/26/2010 · Torrey Pines State Park, La Jolla, California
5/3/2018 · Park Blvd, Joshua Tree National Park, California
4/29/2018 · Willow Spring Picnic Area, Red Rock Canyon, Nevada · ≈ 12 × 8″ (31 × 20 cm) Range:
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