Native Plants

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Oenothera longissima

Oenothera longissima Rydb.

Long-stem Evening-primrose, Longstem Evening Primrose, Longstem Evening-primrose

Onagraceae (Evening Primrose family)

Synonym(s): Oenothera longissima ssp. clutei, Oenothera longissima ssp. typica, Oenothera longissima var. clutei

USDA Symbol: OELO

USDA Native Status: L48 (N)

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Plant Characteristics

Duration: Perennial , Biennial
Habit: Herb
Fruit Type: Capsule
Size Notes: Up to about 10 feet tall.

Bloom Information

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

Distribution

USA: AZ , CA , CO , NV , UT
Native Habitat: Seasonally moist places in creosote-bush scrub, pinyon/juniper woodlands.

National Wetland Indicator Status

Region:	AGCP	AK	AW	CB	EMP	GP	HI	MW	NCNE	WMVE
Status:			OBL							OBL

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.

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 36 - Jepson eFlora (2019) The Jepson Herbarium, University of California, Berkeley
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Webref 15 - The American Southwest (1994) John Crossley

Additional resources

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

Metadata

Record Modified: 2020-12-03
Research By: CBR

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