[Butterweeds & Groundsels: The Genera Packera and Senecio East of the Cascade Mountains of Oregon and Washington]

Rocky Mountain Butterweed, Rocky Mountain Groundsel, Cleftleaf Groundsel

Packera streptanthifolia

Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis

Rocky Mt. Butterweed: Packera streptanthifolia (Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis)

Rocky Mountain butterweed as seen along the trail between Fish Lake and Sugarloaf Mountain, Wallowa-Whitman National Forest........August 13, 2018.

Flowers of Rocky Mt. Butterweed: Packera streptanthifolia (Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis) - Basal leaf of Rocky Mt. Butterweed: Packera streptanthifolia (Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis) - Rocky Mt. Butterweed: Packera streptanthifolia (Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis) - Involucral bracts of Rocky Mt. Butterweed: Packera streptanthifolia (Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis)

Close-up photos showing close-up details of Rocky Mt. butterweed as seen about 5 miles west of Mission Peak, Wenatchee National Forest........July 24, 2009.

Involucral bracts of Rocky Mt. Butterweed: Packera streptanthifolia (Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis)

The photo above shows a close-up of the inflorescence Rocky Mt. butterweed as seen along the western flanks of Little Mt. Adams........August 14, 2004.

Rocky Mt. Butterweed: Packera streptanthifolia (Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis) - Rocky Mt. Butterweed: Packera streptanthifolia (Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis)

Rocky Mt. butterweed along the western flanks of Little Mt. Adams.......August 14, 2004.

Stem leaf of Rocky Mt. Butterweed: Packera streptanthifolia (Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis)

The photo above shows a close-up of a stem leaf of Rocky Mt. butterweed as seen along the western flanks of Little Mt. Adams.........August 14, 2004.

Basal leaves of Rocky Mt. Butterweed: Packera streptanthifolia (Synonyms: Senecio cymbalarioides var. suksdorfii, Senecio leonardii, Senecio streptanthifolius, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. streptanthifolius, Senecio streptanthifolius var. wallowensis)

The photo above shows a close-up of the basal leaves of Rocky Mt. butterweed as seen along the western flanks of Little Mt. Adams.............August 14, 2004.
Paul Slichter