Oenothera coronopifoliaTorr. & A.Gray

crownleaf evening primrose

WFO wfo-0001087523 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Oenothera coronopifolia, photographed by Reid Hardin
fig. a Reid Hardin, CC BY 4.0 / 2021-07-25 / obs. 146268915
Oenothera coronopifolia, photographed by Reid Hardin
fig. b Reid Hardin, CC BY 4.0 / obs. 144575105
Oenothera coronopifolia, photographed by Cheryl McCleary-Catalano
fig. c Cheryl McCleary-Catalano, CC BY 4.0 / obs. 81491023
Oenothera coronopifolia, photographed by Parker Hopkins
fig. d Parker Hopkins, CC0 1.0 / obs. 84213234
Oenothera coronopifolia, photographed by Eric Watts
fig. e Eric Watts, CC BY 4.0 / obs. 45060339
Oenothera coronopifolia, photographed by Ashwin Srinivasan
fig. f Ashwin Srinivasan, CC BY 4.0 / obs. 45194805
Oenothera coronopifolia, photographed by Eric Watts
fig. g Eric Watts, CC BY 4.0 / obs. 22700601
Oenothera coronopifolia, photographed by Eric Knight
fig. h Eric Knight, CC BY 4.0 / obs. 22946060

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 8 botanical countries

Regions where Oenothera coronopifolia is native: Arizona, Colorado, Idaho, Nebraska, New Mexico, South Dakota, Utah, Wyoming ArizonaColoradoIdahoNebraskaNew MexicoSouth DakotaUtahWyoming
Native distribution of Oenothera coronopifolia, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Arizona ARI NORTHERN AMERICA
Colorado COL
Idaho IDA
Nebraska NEB
New Mexico NWM
South Dakota SDA
Utah UTA
Wyoming WYO

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 66 in flower of 67 examined

Peak flowering in May. Each bar is the share of Oenothera coronopifolia observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 66 of 67 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 8 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 2 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Anogra coronopifolia (Torr. & A.Gray) Britton
  • Raimannia coronopifolia Rose

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.