Roadless Areas
Home/Species/ Long-tubed Evening-primrose

Oenothera flava

(A. Nels.) Garrett

Long-tubed Evening-primrose

G5Secure Found in 46 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
LowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.149722
Element CodePDONA0C0E0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderMyrtales
FamilyOnagraceae
GenusOenothera
Other Common Names
Low Yellow Evening-primrose (EN) Onagre jaune (FR) yellow evening primrose (EN) Yellow Evening-primrose (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2023-08-23
Change Date1990-06-04
Edition Date2023-08-23
Edition AuthorsNordman, C. (2023).
Threat ImpactLow
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences> 300
Rank Reasons
Oenothera flava occurs in western North America, including in southern Canada, western United States, and Mexico. There are more than 300 occurrences and its range extent was estimated to be 4 million square kilometers. Threats include low level impacts from livestock grazing, oil and gas drilling and production activities, and recreation such as OHVs (NatureServe 2023).
Range Extent Comments
Oenothera flava occurs in western North America, including in southern Canada, western United States, and Mexico. Range extent of Oenothera flava was estimated to be 4 million square kilometers using herbarium specimens and photo-based observations documented between 1992 and 2023 (Flora of North America Editorial Committee 2021, GBIF 2023, iNaturalist 2023, SEINet 2023).
Occurrences Comments
Based on NatureServe herbarium records, and photo-based observations documented between 1992 and 2023, there are over 300 occurrences rangewide (GBIF 2023, iNaturalist 2023, SEINet 2023).
Threat Impact Comments
Threats to Oenothera flava include low level impacts from livestock grazing, oil and gas drilling and production activities, and recreation such as OHVs (NatureServe 2023).
Ecology & Habitat

Habitat

This species is found in open areas, wet (at least seasonally) clay to gravelly sand of swales, and margins of permanent or seasonal watercourses, as well as drying flats and ponds, and montane meadows, at elevations ranging from 300 to 3200 meters (Flora of North America Editorial Committee 2021).
Terrestrial Habitats
Grassland/herbaceousPlaya/salt flat
Palustrine Habitats
TEMPORARY POOLRiparian
Other Nations (2)
United StatesN5
ProvinceRankNative
MontanaSNRYes
ColoradoS4Yes
New MexicoSNRYes
NevadaS2Yes
OregonSNRYes
South DakotaS1Yes
IdahoSNRYes
ArizonaSNRYes
CaliforniaSNRYes
WyomingS3Yes
North DakotaSNRYes
WashingtonSHYes
UtahSNRYes
CanadaN3
ProvinceRankNative
AlbertaS3Yes
SaskatchewanS3Yes
ManitobaSUYes
Threat Assessments
ThreatScopeSeverityTiming
2 - Agriculture & aquacultureRestricted (11-30%)Slight or 1-10% pop. declineHigh (continuing)
2.3 - Livestock farming & ranchingRestricted (11-30%)Slight or 1-10% pop. declineHigh (continuing)
3 - Energy production & miningRestricted (11-30%)Moderate or 11-30% pop. declineHigh (continuing)
3.1 - Oil & gas drillingRestricted (11-30%)Moderate or 11-30% pop. declineHigh (continuing)
6 - Human intrusions & disturbanceSmall (1-10%)Moderate or 11-30% pop. declineHigh (continuing)
6.1 - Recreational activitiesSmall (1-10%)Moderate or 11-30% pop. declineHigh (continuing)

—

Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (46)
Arizona (2)
AreaForestAcres
Arnold MesaPrescott National Forest12,286
Ash CreekPrescott National Forest7,663
California (1)
AreaForestAcres
Silver HillHumboldt-Toiyabe National Forest4,423
Colorado (4)
AreaForestAcres
Dome PeakRoutt NF35,716
Long ParkRoutt NF42,100
San MiguelSan Juan NF64,263
Storm PeakSan Juan NF57,617
Montana (2)
AreaForestAcres
Cabin Creek Wildlife Management Area OcdGallatin National Forest35,048
LionheadGallatin National Forest33,549
Nevada (1)
AreaForestAcres
Tehama CreekHumboldt-Toiyabe National Forest7,656
New Mexico (3)
AreaForestAcres
Devils CreekGila National Forest89,916
Frisco BoxGila National Forest38,979
Peloncillo (NM)Coronado National Forest43,339
Utah (30)
AreaForestAcres
0401002Ashley National Forest36,113
418002Uinta National Forest19,152
418003Uinta National Forest10,912
418004Uinta National Forest16,661
418026Uinta National Forest14,038
418027Uinta National Forest13,884
Big Bear CreekManti-Lasal National Forest28,440
Boulder Mtn. / Boulder Top / Deer LakeDixie National Forest110,690
Boulger - Black CanyonManti-Lasal National Forest23,286
Bullion - DelanoFishlake National Forest14,917
Casto BluffDixie National Forest87,466
City CreekFishlake National Forest13,939
Dark ValleyDixie National Forest27,481
Deer CreekDixie National Forest39,818
FishhookDixie National Forest12,959
Fishlake MountainFishlake National Forest25,217
HancockDixie National Forest9,809
High Uintas (UT)Wasatch-Cache National Forest102,398
Horse Mountain - Mans PeakManti-Lasal National Forest22,159
LakesWasatch-Cache National Forest121,967
Lava BedsDixie National Forest14,944
Little CreekFishlake National Forest11,479
Little West Fork BlacksWasatch-Cache National Forest8,209
Long Neck Mesa / Steep Creek / Oak Creek - Steep Creek / OakDixie National Forest55,489
Mcgath Lake - Auger HoleDixie National Forest8,334
Mt. Um Plateau - Mt TerrillFishlake National Forest17,490
Muddy Creek - Nelson Mt.Manti-Lasal National Forest59,034
Signal PeakFishlake National Forest30,889
Temple PeakWasatch-Cache National Forest24,081
Tushar MountainFishlake National Forest39,992
Wyoming (3)
AreaForestAcres
Grayback RidgeBridger-Teton National Forest295,113
Monument RidgeBridger-Teton National Forest17,720
Salt River RangeBridger-Teton National Forest235,661
References (6)
  1. Flora of North America Editorial Committee (FNA). 2021. Flora of North America north of Mexico. Vol. 10. Magnoliophyta: Proteaceae to Elaeagnaceae. Oxford Univ. Press, New York. xxiv + 456 pp.
  2. Global Biodiversity Information Facility (GBIF). 2023. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2023).
  3. iNaturalist. 2023. Online. Available: https://www.inaturalist.org (accessed 2023).
  4. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  5. NatureServe. 2023. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  6. Southwest Environmental Information Network (SEINet). 2023. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2023).