[The Rose Family in Mt. Adams Country]

Gordon's Ivesia

Ivesia gordonii

Synonyms: Horkelia gordonii, Horkelia gordonii var. alpicola, Ivesia alpicola, Potentilla gordonii

Alpine Mousetail, Gordon's Ivesia: Ivesia gordonii var. gordonii (Synonym: Horkelia gordonii var. alpicola)

The photo above shows a close-up view of the flower of Gordon's ivesia as seen at about 8000' in the Devils Garden on the northeastern slopes of Mt. Adams........July 24, 2005. Note that the tiny oblanceolate petals are shorter than the triangular sepals.


Leaves of Alpine Mousetail, Gordon's Ivesia: Ivesia gordonii var. gordonii (Synonym: Horkelia gordonii var. alpicola)

The photo above shows a close-up of the deeply cleft leaflets of gordon's ivesia as seen along the Highline Trail #114 at about 6800' on the northern slopes of Mt. Adams........July 10, 2005.

Leaf of Alpine Mousetail, Gordon's Ivesia: Ivesia gordonii var. gordonii (Synonym: Horkelia gordonii var. alpicola)

The photo above shows the pinnately compound leaf of Gordon's ivesia as seen along the Highline Trail #114 at about 6800' on the northern slopes of Mt. Adams.........July 10, 2005.

Alpine Mousetail, Gordon's Ivesia: Ivesia gordonii var. gordonii (Synonym: Horkelia gordonii var. alpicola)

The rounded inflorescence of Gordon's ivesia as seen on rocky outcrops atop the Ridge of Wonders on the eastern slopes of Mt. Adams........August 12, 2006.

Alpine Mousetail, Gordon's Ivesia: Ivesia gordonii var. gordonii (Synonym: Horkelia gordonii var. alpicola)

The photo above shows the flowers of Gordon's ivesia as seen along the Highline Trail #114 at about 6800' on the northern slopes of Mt. Adams........July 10, 2005.

Alpine Mousetail, Gordon's Ivesia: Ivesia gordonii var. gordonii (Synonym: Horkelia gordonii var. alpicola)

The photo above shows a typical cluster of Gordon's ivesia as seen at about 8000' in the Devils Garden on the northeastern slopes of Mt. Adams.......July 24, 2005.

Alpine Mousetail, Gordon's Ivesia: Ivesia gordonii var. gordonii (Synonym: Horkelia gordonii var. alpicola)

Gordon's ivesia as seen with mountain sandwort (Eremogone capillaris) near 7000' below the Lava Glacier, north side of Mount Adams..........August 11, 2016.

Paul Slichter