Rydberg's Geranium, Sticky Purple Geranium: Geranium viscosissimum var. incisum (Synonyms: Geranium canum, Geranium nervosum, Geranium strigosius, Geranium strigosum, Geranium viscosissimum ssp. nervosum, Geranium viscosissimum var. nervosum)

A close-up of the flowers of Rydberg's geranium as seen at the trailhead for Canyon Creek, Klickitat Wildlife Area..........May 22, 2015.

A close-up of the flowers of Rydberg's geranium as seen at the trailhead for Canyon Creek, Klickitat Wildlife Area..........May 22, 2015. Plants at this location have a few glands in the hairs, but plants are largely not sticky to the touch.

Rydberg's geranium as seen along a road in aspen woodlands about one quarter mile uphill to the west of Hot Springs Campground, Hart Mt. National Antelope Refuge.........June 9, 2016.

Close-ups of what appear to be a white-flowered form of sticky geranium. Generally, a perennial geranium with white flowers would be considered to be Richardson's geranium which is white-flowered with spreading hairs up to half the length of the inner petal surface, but these flowers have such hairs over the lower one-quarter to one-third of the inner surface. Plus most of the other geraniums in this population had dark pink flowers. Photographed at the trailhead to Canyon Creek in the Klickitat State Wildlife Area in south-central Washington.........June 12, 2009.

Rydberg's geranium as seen beginning to bloom in open forest western edge of FS Road #4215 in Antler Prairie, Ochoco National Forest...........May 27, 2016. These individuals have pale flowers somewhat reminiscent of Geranium richardsonii, but the base of the petals are hair up to about 1/3 of the distance up from the base.

Rydberg's geranium blooming at left along the Round Mountain South Trail #805 near Wildhorse Springs on the south side of Round Mt., Ochoco National Forest.........May 28, 2016. The photo at right shows Rydberg's geranium blooming near the trailhead for the Stein's Pillar Trail #837, Ochoco National Forest.......June 2, 2018.

Close-ups of sticky geranium as seen at the trailhead to Canyon Creek in the Klickitat State Wildlife Area in south-central Washington..........June 12, 2009. This is the same location as the white-flowered form above.

Sticky geranium observed along the Fremont National Recreation Trail #160 at the southwestern corner of Twelvemile Peak, Fremont-Winema National Forest......July 16, 2022.

Sticky geranium observed at the end of Forest Road 4011 where there's a small parking area where spur road 015 begins, Crane Mountain, Fremont-Winema National Forest........August 1, 2020.