Assertion: desert's vegetation | /r/HasProperty | dominated by white bursage
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Source sentences:
text: In the hyperarid lowlands of the Lower Colorado River Valley subdivision of the Sonoran Desert in southwestern Arizona, southeastern California, and the Gran Desierto of northwestern Sonora, the vegetation is a simple desertscrub dominated by creosote bush, white bursage (Ambrosia dumosa), and big galleta.