Assertion: joshua tree | /r/AtLocation | saddleback butte state park
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Source sentences:
text: Yucca brevifolia are found in the southern and western Mojave desert, including Joshua Tree National Park and Saddleback Butte State Park; Yucca brevifolia jaegeriana grow in the eastern Mojave desert, including Mojave National Preserve and close to Dolan Springs in Arizona.