Dwarf Purple Monkeyflower, a native species, has been added to the USWildflowers database (06/14/2012.) Scientific name is Mimulus nanus.  Photo below was taken in Adams County, ID on May 25, 2012. Go to the Dwarf Purple Monkeyflower detail page for more information.

Dwarf Purple Mimulus, Dwarf Purple Monkeyflower – Mimulus nanus