[Cinquefoils: The Genera Comarum, Dasiphora, Drymocallis and Potentilla in Mt. Adams Country]

Brewer's Cinquefoil

Potentilla breweri

Synonyms: Potentilla breweri var. expansa, Potentilla drummondii ssp. breweri, Potentilla drummondii var. breweri

Photos of Brewer's cinquefoil from the Steen's Mt. in southeastern Oregon and Wenatchee Mountains.


Flower of Brewer's Cinquefoil: Potentilla breweri (Synonyms: Potentilla breweri var. expansa, Potentilla drummondii ssp. breweri, Potentilla drummondii var. breweri)

The photo above shows a close-up of the flower of Brewer's cinquefoil as seen on Mt. Adams........July 16, 2005.

Sepals of Brewer's Cinquefoil: Potentilla breweri (Synonyms: Potentilla breweri var. expansa, Potentilla drummondii ssp. breweri, Potentilla drummondii var. breweri)

The photo above shows a close-up side-view of the flower and calyx of Brewer's cinquefoil as seen on Mt. Adams..........July 16, 2005.

Inflorescence of Brewer's Cinquefoil: Potentilla breweri (Synonyms: Potentilla breweri var. expansa, Potentilla drummondii ssp. breweri, Potentilla drummondii var. breweri)

The photo above shows a close-up of the open inflorescence of Brewer's cinquefoil as seen on Mt. Adams..........July 16, 2005. The long scapes at first spread outwards from the tuft of woolly basal leaves but then typically ascend or become erect from mid-scape. Note the leafy bracts at the base of the inflorescence.

Leaves of Brewer's Cinquefoil: Potentilla breweri (Synonyms: Potentilla breweri var. expansa, Potentilla drummondii ssp. breweri, Potentilla drummondii var. breweri)

The photo above shows the pinnately comound leaf of Brewer's cinquefoil. The leaflets are woolly-haired below, and often so above. The 9-11 leaflets are greater than 1.5 cm wide and 1-2 cm long, and deeply cleft as seen in the photo. Note also the photos of older plants, taken later in the season below.

Brewer's Cinquefoil: Potentilla breweri (Synonyms: Potentilla breweri var. expansa, Potentilla drummondii ssp. breweri, Potentilla drummondii var. breweri)

Brewer's Cinquefoil: Potentilla breweri (Synonyms: Potentilla breweri var. expansa, Potentilla drummondii ssp. breweri, Potentilla drummondii var. breweri)

Brewer's cinquefoil as seen on cindery slopes on Mt. Adams..........August 13, 2012.

Brewer's Cinquefoil: Potentilla breweri (Synonyms: Potentilla breweri var. breweri, Potentilla breweri var. expansa, Potentilla drummondii, Potentilla drummondii ssp. breweri, Potentilla drummondii var. breweri) - Brewer's Cinquefoil: Potentilla breweri (Synonyms: Potentilla breweri var. breweri, Potentilla breweri var. expansa, Potentilla drummondii, Potentilla drummondii ssp. breweri, Potentilla drummondii var. breweri) - Brewer's Cinquefoil: Potentilla breweri (Synonyms: Potentilla breweri var. breweri, Potentilla breweri var. expansa, Potentilla drummondii, Potentilla drummondii ssp. breweri, Potentilla drummondii var. breweri)

Mt. Adams................August 7, 2004.

Paul Slichter