[Mountain Ash: The Genus Sorbus in the Cascade Mountains of Oregon and Washington]

Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash

Sorbus sitchensis var. grayi

Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi

Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi)

This photo shows sitka mountain ash (var. grayi) as seen along the southern rim of the White River canyon about one-half mile east of Timberline Lodge on Mt. Hood..........August 29, 2008.

Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi)

Dwarf mountain ash observed with a visiting syrphid fly on slopes above the Mount Hood Meadows Ski Area, Mount Hood, OR.....July 4, 2021.

Berries and fall foliage of Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi)

A close-up of the berries and attractive fall foliage of sitka mountain ash (var. grayi) as seen along the Timberline Trail 600 between Cloud Cap and Gnarl Ridge, Mt. Hood Wilderness............September 2012.

Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi) - Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi)

Close-up images of the maturing fruits of sitka mountain ash as seen atop Badger Peak in the Dark Divide, Gifford Pinchot National Forest...........August 22, 2014.

Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi) - Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi)

Maturing fruits (still lacking their ripe, red color) of sitka mountain ash as seen at left along the Boundary Trail #1 to the southeast of Dark Meadows, Dark Divide, Gifford Pinchot National Forest..........July 3, 2015. Note the 9 leaflets per leaf with leaflet margins only toothed near the tip. The photo at right shows maturing fruits of sitka mountain ash as observed along the shoreline at Blue Lake, Indian Heaven Wilderness.....August 24, 2019.

Cascade Mt.-ash: Sorbus scopulina var. cascadensis - Cascade Mt.-ash: Sorbus scopulina var. cascadensis - Cascade Mt.-ash: Sorbus scopulina var. cascadensis

These 3 photos show dwarf mt.-ash as seen at various locations within the Gifford Pinchot National Forest.

Fall foliage of Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi) - Fall foliage of Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi)

Colorful fall foliage of dwarf mountain ash as seen along the Fret Creek Trail #456, Badger Creek Wilderness......September 26, 2021.

Maturing fruits of Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi) - Fall foliage of Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi)

Ripening fruits of dwarf mountain ash as seen at left along the Pacific Crest Trail #2000 in the Berry Fields about one-quarter of a mile south of Forest Road 24, Gifford Pinchot National Forest......September 26, 2022. The photo at right shows another view of the fall foliage of dwarf mountain ash as seen along the Thomas Lake Trail, Indian Heaven Wilderness.....October 6, 2023.

Fruits of Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi) - Pinnately compound leaf of Dwarf Mountain Ash, Gray's Mountain Ash, Sitka Mountain Ash, Sitka Mountain-ash: Sorbus sitchensis var. grayi (Synonyms: Pyrus occidentalis, Sorbus occidentalis, Sorbus sitchensis ssp. grayi)

Dwarf mountain ash as seen near Rock Lake in the Indian Heaven Wilderness.........August 7, 2015.

Paul Slichter