[Buttercups: The Genus Ranunculus in the Columbia River Gorge of Oregon and Washington]

Plantain-leaf Buttercup, Plantain-leaved Buttercup

Ranunculus alismifolius var. alismifolius

Synonym: Ranunculus alismaefolius var. alismaefolius

Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius)

Plantainleaved buttercup as seen at the Sondino Unit of the Klickitat Wildlife Area, Columbia River Gorge............May6, 2014.

Underside of the flower of Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius) The photograph at right shows a close-up sideview of the flower of plantainleaved buttercup as seen in a ditch along Kreps Lane in Conboy NWR at the southeastern base of Mt Adams.......May 30, 2006.
Characteristics:

Plantain-leaved buttercup is a perennial wildflower with one to several hollow stems which are erect or spreading and up to 60 cm long. The stems may be simple or branched within the inflorescence.

The leaves are long (to 15 cm), narrow, and lanceolate with long plantain-like petioles which may be as much as twice as long as the blades. . The leaves are usually entire, but may be slightly toothed. The stem leaves are reduced in size and alternate or opposite. The upper leaves are short petiolate or sessile.

The inflorescence consists of one to many flowers with long peidicels (up to 15 cm long). Individual flowers are a shiny yellow, with 5 petals measuring 5-10 mm long and 5 greenish, hairy sepals from 3-5 mm long.The stamens number from 25 to 90.


Habitat:

Plantain-leaf buttercup is found in wet swales and pond margins, along streambanks or in moist alpine meadows.


Range:

Plantain-leaf buttercup is widespread in distribution throughout the western United States and southwestern Canada.

In the Columbia River Gorge it may be found between the elevations of 500'-2300' between the White Salmon River and The Dalles, OR.


Flower of Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius)

The photograph shows a close-up sideview of the flower of plantainleaved buttercup as seen in a ditch along Kreps Lane in Conboy NWR at the southeastern base of Mt Adams.......May 30, 2006.

Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius)

The upper stem of plantainedleaved buttercup beginning to bloom in the vernally inundated meadows at Panakanic in western Klickitat County...........May 17, 2013.

Stem leaf of Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius) - Basal leaf of Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius)

The photos above show a stem leaf (left) and basal leaf (right) of plantainleaved buttercup as seen at Conboy NWR.......May 30, 2006. The margins of this variety are often serrulate.

Habitat of Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius) - Habitat of Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius)

Two photos of the habitat of plantainleaved buttercup as seen at the Sondino Unit of the Klickitat Wildlife Area, Columbia River Gorge............May6, 2014.

Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius) - Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius) - Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius)

Plantainleaved buttercup as seen in a small game-stock pond near the South Klickitat Breaks Road, Klickitat Wildlife Area............May 16, 2014.

Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius) - Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius)

Plantainleaved buttercup as seen in a small pond adjacent to Marsh Hill, Columbia River Gorge...........April 14, 2018.

Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius) - Plantain-leaf Buttercup, Plantain-leaved Buttercup: Ranunculus alismifolius var. alismifolius (Synonym: Ranunculus alismaefolius var. alismaefolius)

Plantain-leaved buttercup blooming in a moist swale near upper Rattlesnake Creek, just downstream from the meadows at Panacanic, western Klickitat County, Oregon..........May 6, 2015.

Paul Slichter