The Shivwitz milk vetch has adapted to grow only on soft, purple-hued clays. When wet, these plum-colored clays become like glue; when dry, they often shrink and crumble. Despite these dynamic soil ...

Unaccustomed to cosmopolitan life, the Coachella Valley milk vetch finds itself and its sandy home amid one of the fastest-growing metropolitan areas in the United States. Living at the edge of ...