Coreopsis roseaNutt.

pink tickseed

WFO wfo-0000015938 Accepted WFO 2026-06 8 photographs CC BY / CC BY-SA

Plate 1 figs. a–h · 7 observations

This species has been photographed under an open licence only 7 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Coreopsis rosea, photographed by Bonnie Semmling
fig. a Bonnie Semmling, CC BY 4.0 / 2021-07-24 / obs. 146110329
Coreopsis rosea, photographed by Bonnie Semmling
fig. b Bonnie Semmling, CC BY 4.0 / obs. 146113392
Coreopsis rosea, photographed by bobkennedy
fig. c bobkennedy, CC BY-SA 4.0 / obs. 9808709
Coreopsis rosea, photographed by Annie Weissman
fig. d Annie Weissman, CC BY 4.0 / obs. 159691580
Coreopsis rosea, photographed by Bonnie Semmling
fig. e Bonnie Semmling, CC BY 4.0 / obs. 146002830
Coreopsis rosea, photographed by Bonnie Semmling
fig. f Bonnie Semmling, CC BY 4.0 / obs. 146114569
Coreopsis rosea, photographed by Mike Zifkin
fig. g Mike Zifkin, CC BY 4.0 / obs. 50068024
Coreopsis rosea, photographed by Bonnie Semmling
fig. h Bonnie Semmling, CC BY 4.0 / obs. 146114511

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 9 botanical countries

Regions where Coreopsis rosea is native: Delaware, Maryland, Massachusetts, New Jersey, New York, Nova Scotia, Pennsylvania, Rhode I., South Carolina MarylandMassachusettsNew JerseyNew YorkNova ScotiaPennsylvaniaSouth Carolina DelawareRhode I.
Native distribution of Coreopsis rosea, 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. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Delaware DEL NORTHERN AMERICA
Maryland MRY
Massachusetts MAS
New Jersey NWJ
New York NWY
Nova Scotia NSC
Pennsylvania PEN
Rhode I. RHO
South Carolina SCA

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 317 in flower of 323 examined

Peak flowering in Sep. Each bar is the share of Coreopsis rosea 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. 317 of 323 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 3 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.

  • Calliopsis rosea (Nutt.) Spreng.
  • Coreopsis rosea f. leucantha Fernald
  • Coreopsis rosea f. rosea

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.