Petrophyton caespitosum
A low subshrub of open rock, widespread throughout most of the western United States.
Plant habit on the Devil's Hall Trail in Guadalupe Mts. National Park, 14 Aug 2007.
An inflorescence on the Devil's Hall Trail, 14 Apr 2007.
Plant habit on the Devil's Hall Trail in Guadalupe Mountains National Park, 14 Aug 2007.