Large stands of Sierra evening primrose (Oenothera xylocarpa) can be found in moist areas in the eastern Sierra in summer. These were growing along Convict Creek, on the eastern slope of the Sierra Nevada in California's Mono County.
Canon 1D Mk. II, Canon 100 mm macro lens, fill-in flash (close-up), or 500 mm IS lens + 1.4X converter and extension tubes, some with fill-in flash (2006)