[The Genus Phlox in the Cascade Mountains of Oregon and Washington]

Spreading Phlox

Phlox diffusa

Synonyms: Phlox azurea, Phlox diffusa ssp. diffusa, Phlox diffusa ssp. longistylis, Phlox diffusa var. longistylis

The photo at left shows spreading phlox as photographed in the King Mountain Rock Garden RNA of the Umpqua National Forest........June 25, 2005. The photo at right shows spreading phlox at Hobart Bluff, Cascade-Siskiyou National Monument......May 28, 2021.

Spreading phlox as seen at left atop Observation Peak, Trapper Creek Wilderness............June 22, 2013. The photo at right shows spreading phlox as seen along the Pacific Crest Trail #2000 at Cispus Pass, Goat Rocks Wilderness.......August 19, 2020.

Spreading phlox as seen above timberline on open slopes along the Butte Camp Trail #238A near the junction with the Loowit Trail #216, Mount Saint Helens National Monument.........June 9, 2015.

Spreading phlox as seen at a pass between the South Fork Tieton River and Conrad Creek drainages. This is along an old pack trail which climbs northwest from the uppermost part of the loop of the South Fork Tieton River Trail #1120, Goat Rocks Wilderness........July 21, 2016.

Spreading phlox as seen at left near Lookout Mountain, Badger Creek Wilderness..........July 17, 2016. The photo at right shows spreading phlox as seen above timberline on open slopes along the Butte Camp Trail #238A near the junction with the Loowit Trail #216, Mount Saint Helens National Monument.........July 23, 2017.

Spreading phlox as observed at left along the Lowder Mountain Trail #3329, Three Sisters Wilderness........June 23, 2018. The photo at right shows spreading phlox in bloom atop Bear Creek Mountain, Goat Rocks Wilderness......July 31, 2019..

Spreading phlox still in bloom at left along the Pacific Crest Trail on the southeastern slopes of Mt. Ashland, Rogue River-Siskiyou National Forest......October 15, 2019. The photo at right shows spreading phlox in bloom on Rhyolite Ridge to the west of Pilot Rock, Cascade-Siskiyou National Monument......May 26, 2021.

Spreading phlox in bloom at left along the Fifteenmile Trail #456 downhill to the east of Fifteenmile Campground, Mount Hood National Forest.......July 8, 2022. The photo at left shows spreading phlox blooming on slopes below the norhteast side of the summit of Lookout Mountain, Badger Creek Wilderness.....June 29, 2023.

Spreading phlox as seen from a pass 1 mile east of Berkley Pass, Mount Rainier National Park, August 23, 1996.

Paul Slichter