Definition of rubber rabbitbrush
: a rabbitbrush (Ericameria nauseosa synonym Chrysothamnus nauseosus) of western North America that typically grows in poor, dry soils and has flexible hairy stems and clusters of small yellow flowers ◆When crushed, the narrow leaves of the rubber rabbitbrush emit an odor that may be considered unpleasant. —called also chamisa, gray rabbitbrush
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First Known Use of rubber rabbitbrush
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