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Indigo bush,   Psorothamnus arborescens        Images © Mark A. Chappell

The indigo bush (or indigobush) is a dull-colored shrub with small but intensely blue flowers.  It grows in sandy soil, usually in washes or other drainages, in the American southwest.   These flowers were photographed along the Palm Canyon Trail in Anza-Borrego State Park and near Palm Desert, both in southern California.

  • Canon 1D4 or 5D4; 16-35 f4 zoom or Tamron 180 mm macro lens with fill-in flash and extension tubes (2011, 2017)