Phlox tenuifolia, the Santa Catalina Mountain phlox, is a white flowered plant in the phlox family (Polemoniaceae) that can be found with stems climbing through shrubs and other vegetation growing on rocky slopes of the Sonoran Desert in Arizona.Sonoran Desert Wildflowers, Richard Spellenberg, 2nd ed., 2012, Botanist Richard Spellenberg has described its floral displays over supporting vegetation as "spectacular".
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