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NPIN: Native Plant Database

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Oenothera flava (Long-tube evening-primrose)
Bransford, W.D. and Dolphia

Oenothera flava

Oenothera flava (A. Nelson) Garrett

Long-tube evening-primrose, Shortfin evening-primrose, Yellow evening-primrose

Onagraceae (Evening-Primrose Family)

Synonym(s):

USDA Symbol: OEFL

USDA Native Status: L48 (N), CAN (N)

Long-tube evening-primrose is a nearly stemless, clumped perennial with rosettes of deeply toothed, oblong-linear leaves. Flowers are slender-tubed, with four yellow petals and four green sepals. The sepals turn purple with age. The tufted plant is usually less than 8 in. tall.

 

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf: Green
Flower:
Fruit:
Size Class: 0-1 ft.

Bloom Information

Bloom Color: Yellow
Bloom Time: Apr , May , Jun , Jul , Aug

Distribution

USA: AZ , CA , CO , ID , MT , ND , NE , NM , NV , OR , SD , TX , UT , WA , WY
Canada: AB , SK
Native Distribution: Sask. to NM, w. to ID & CA; also along the Yakima R., WA
Native Habitat: Damp, prairie swales; open, wooded areas; stream valleys

Growing Conditions

Water Use: Medium
Light Requirement: Sun
CaCO3 Tolerance: Low
Soil Description: Damp to drier soils.
Conditions Comments: Not Available

Benefit

Conspicuous Flowers: yes

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Mr. Smarty Plants says

Possibility of Oenothera flava growing in Michigan
June 16, 2006
Oenothera flava (A. Nels) Garrett, is it true that this plant is not in Michigan? Is it rare or something? Because I had a hard time trying to find out what it was.
view the full question and answer

National Wetland Indicator Status

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FAC FACW FAC
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Additional resources

USDA: Find Oenothera flava in USDA Plants
FNA: Find Oenothera flava in the Flora of North America (if available)
Google: Search Google for Oenothera flava

Metadata

Record Modified: 2007-01-01
Research By: TWC Staff

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