Whorlflower penstemon
Images copyright by Mark A. Chappell

These low-growing penstemons (probably whorlflower penstemon, Penstemon heterodoxus) were flowering in August at 3,800 m altitude on the alpine plateau near Mt. Barcroft, in the White Mountains of eastern California.

digital captures, Canon 1D Mk.3, Canon 100 mm macro lens, ringflash (2008)