Cascade Mountain-ash, Greene's Mountain-ash, Rocky Mountain Mountain-ash, Western Mountain-ash
Sorbus scopulina
Synonyms: Pyrus scopulina, Sorbus cascadensis, Sorbus scopulina var. cascadensis, Sorbus scopulina var. scopulina
- 
The photo at left shows cascade mountain-ash
as seen at Snowking SnoPark along forest road #82.........May 28, 2005.
Viewed from a distance, this shrub may be mistaken for
blue
elderberry. The photo at right shows cascade mountain-ash in bloom along the Shorthorn Trail #12, Mt. Adams Wilderness......July 10, 2020.
- 
The photo at left shows a close-up side-view
of the corymbose inflorescence of cascade mountain-ash as seen at Snowking SnoPark
along forest road #82.........May 28, 2005. The photo at right shows the still green fruits and shiny compound leaves of cascade mountain-ash as seen along the Stagman Ridge Trail #12, Mount Adams Wilderness.......August 9, 2021.
- 
Maturing fruits of cascade mountain-ash as seen at left about half a mile uphill from Bluff Lake along the Bluff Lake Trail, Bird Creek Meadows, Yakama Nation.........September 2, 2017. The photo at right shows the maturing fruits of cascade mountain-ash as seen along the Stagman Ridge Trail #12, Mt. Adams Wilderness.......September 2, 2018.
The photo above shows a close-up of the corymbose
inflorescence (as seen from directly overhead) of cascade mountain-ash as seen
at Snowking SnoPark along forest road #82..........May 28, 2005.
The photo above shows a close-up of the pinnately compound leaf
of cascade mountain-ash as seen at Snowking SnoPark along forest road #82..........May
28, 2005. Note the acute tips to the blades and leaflet margins which are serrate
for much of their length.
- 
- 
Beautiful fall foliage and fruits of cascade mountain-ash as seen along the Bluff Lake Trail about one-half mile downhill from the Round the Mountain Trail #9 at Bird Creek Meadows, Mt. Adams.......September 5, 2021.
The photo above shows a close-up of the fruits
of Cascade mountain-ash as seen at SnowKing SnoPark along Road #82 on the southeastern
approach to Mt. Adams..........August 25, 2005. The fruits are glossy and
range from orange to scarlet red.
Paul Slichter