[Evening-primroses: The Genus Camissonia in the Columbia River Gorge of Oregon and Washington] - [The Evening-primroses of the Columbia River Gorge of Oregon and Washington]

Contorted Pod Evening Primrose, Contorted Pod Suncup, Plains Evening-primrose, Slender Evening Primrose, Twisted Suncup

Camissonia contorta

Synonyms: Oenothera contorta, Oenothera contorta var. contorta, Oenothera cruciata (illeg.), Oenothera dentata

Flower of Contorted Pod Evening Primrose, Contorted Pod Suncup, Plains Evening-primrose, Slender Evening Primrose, Twisted Suncup: Camissonia contorta (Synonyms: Oenothera contorta, Oenothera contorta var. contorta, Oenothera cruciata (illeg.), Oenothera dentata)

The photo above shows a close-up of the flower of slender evening-primrose as seen at Horsethief Butte........May 10, 2009. Note the large, knob-like stigma.

Characteristics:

Slender evening-primrose is a low growing annual with one stem or more commonly branched and sprawling stems ranging from 5-15 cm long. The herbage ranges from spreading-pubescent to glandular-puberulent. The leaves range from linear to linear-lanceolate or linear-oblanceolate with entire to slightly toothed margins. The leaves range from 10-30 mm long. The floral bracts are of similar shape and size.

The flowers are sessile or on short pedicels. The four yellow petals range from 2.5-4 mm long with unequally-sized stamens, the longer pair usually nearly twice the length of the shorter pair. The capsule is linear in shape, and ranges from 2-54 cm long and about 1 mm in width.


Habitat:

Slender evening-primrose may be found in sandy soils along the coast and along river banks.


Range:

Slender evening-primrose may be found along the coast from British Columbia south to Baja California and east along the rivers to the Rocky Mountains.

In the Columbia River Gorge, it may be found between the elevations of 200'-500' east of Lyle, WA.


Contorted Pod Evening Primrose, Contorted Pod Suncup, Plains Evening-primrose, Slender Evening Primrose, Twisted Suncup: Camissonia contorta (Synonyms: Oenothera contorta, Oenothera contorta var. contorta, Oenothera cruciata (illeg.), Oenothera dentata) - Contorted Pod Evening Primrose, Contorted Pod Suncup, Plains Evening-primrose, Slender Evening Primrose, Twisted Suncup: Camissonia contorta (Synonyms: Oenothera contorta, Oenothera contorta var. contorta, Oenothera cruciata (illeg.), Oenothera dentata)

Contorted pod suncup growing at left on sandy soils along Washington Highway 14 at the base of the Goodnoe Hills in south-central Klickitat County, WA.......April 20, 2011. The photo at right shows contorted pod suncup blooming near the previous location along WA SR 14, about 1 mile west of Rock Creek........May 2, 2019.

Contorted Pod Evening Primrose, Contorted Pod Suncup, Plains Evening-primrose, Slender Evening Primrose, Twisted Suncup: Camissonia contorta (Synonyms: Oenothera contorta, Oenothera contorta var. contorta, Oenothera cruciata (illeg.), Oenothera dentata)

The photo above shows the general shape of slender evening-primrose as seen at Horsethief Butte.......April 24, 2006. As seen here, plants of this species tend to be 6-8 cm high.

Contorted Pod Evening Primrose, Contorted Pod Suncup, Plains Evening-primrose, Slender Evening Primrose, Twisted Suncup: Camissonia contorta (Synonyms: Oenothera contorta, Oenothera contorta var. contorta, Oenothera cruciata (illeg.), Oenothera dentata)

The photo above shows a close-up of the hairy, contorted fruits of slender evening-primrose as seen at Horsethief Butte.........May 10, 2009. Note the hairy, contorted fruits.

Contorted Pod Evening Primrose, Contorted Pod Suncup, Plains Evening-primrose, Slender Evening Primrose, Twisted Suncup: Camissonia contorta (Synonyms: Oenothera contorta, Oenothera contorta var. contorta, Oenothera cruciata (illeg.), Oenothera dentata)

Slender evening-primrose as seen at Horsethief Butte.........May 10, 2009.

Flower of Contorted Pod Evening Primrose, Contorted Pod Suncup, Plains Evening-primrose, Slender Evening Primrose, Twisted Suncup: Camissonia contorta (Synonyms: Oenothera contorta, Oenothera contorta var. contorta, Oenothera cruciata (illeg.), Oenothera dentata)

The photo above shows a close-up of the flower of slender evening-primrose as seen at Horsethief Butte.......April 24, 2006.

Paul Slichter