[Wall Flowers: The Genus Erysimum in the Columbia River Gorge of Oregon and Washington]

Pale Wallflower, Pale Wall Flower, Western Wallflower

Erysimum occidentale

Synonyms: Cheiranthus occidentalis, Cheirinia occidentalis

Pale Wallflower, Pale Wall Flower, Western Wallflower: Erysimum occidentale (Synonyms: Cheiranthus occidentalis, Cheirinia occidentalis)

Pale wall flower from sand pit along Washington State Road 14 at MP 115.6 west of Rock Creek, eastern Columbia River Gorge......March 6, 2005.
Pale Wallflower, Pale Wall Flower, Western Wallflower: Erysimum occidentale (Synonyms: Cheiranthus occidentalis, Cheirinia occidentalis)The photo at right shows the flowers and long, linear stem leaves of pale wall flower. Photographed west of Rock Creek in the eastern Columbia River Gorge......March 27, 1999.
Characteristics:

Pale wall flower is an attractive dry land wildflower. It is a biennial with one to several stout stems from 20-50 cm high. Plants have numerous basal and stem leaves. The leaves are narrowly linear to linear-lanceolate or oblanceolate in shape with entire to sometimes several-toothed margins. Individual leaves range from 4 to 8 cm long and 2-4 mm wide.

The inflorescence is a raceme of numerous light yellow flowers. The four sepals are 8-10 mm long. The four petals are 1.5-2 cm long. The fruits are siliques which are flattened in cross-section. They measure from 6-10 cm long and up to 3-4 mm wide and are ascending.

Pale wall flower would be a suitable addition for the dry land garden.

Habitat:

Pale wall flower may be found on dry ground. It is often seen in sandy areas or maybe found around sagebrush in the lowlands.

Range:

Pale wall flower may be found east of the Cascade Range from central Washington southto Nevada and east to Idaho.

In the Columbia River Gorge it may be found between the elevations of 100'-500' to the east of Lyle, WA.

Pale Wallflower, Pale Wall Flower, Western Wallflower: Erysimum occidentale (Synonyms: Cheiranthus occidentalis, Cheirinia occidentalis) - Pale Wallflower, Pale Wall Flower, Western Wallflower Erysimum occidentale (Synonyms: Cheiranthus occidentalis, Cheirinia occidentalis)

A robust specimen of pale wallflower as seen at left in dunes next to Washington Highway SR 14 at MP 115.6 in the eastern Columbia River Gorge.........April 18, 2010. The photo at right shows a close-up of the inflorescence of pale wallflower in dunes along WA SR 14 about one mile west of Rock Creek.......May 2, 2019.

Inflorescence of Pale Wallflower, Pale Wall Flower, Western Wallflower: Erysimum occidentale (Synonyms: Cheiranthus occidentalis, Cheirinia occidentalis)

Pale wall flower photographed several miles west of Rock Creek, along SR 14 at MP 115.6 in the eastern Columbia River Gorge..........March 26, 2005.
Slichter