Packera plattensis(Nutt.) W.A.Weber & Á.Löve

Prairie ragwortprairie groundsel

WFO wfo-0000119906 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Packera plattensis, photographed by Marilynn Miller
fig. a Marilynn Miller, CC BY 4.0 / 2022-06-01 / obs. 203374637
Packera plattensis, photographed by Craig Martin
fig. b Craig Martin, CC0 1.0 / obs. 190973615
Packera plattensis, photographed by Kaden Stebbins
fig. c Kaden Stebbins, CC0 1.0 / obs. 134907321
Packera plattensis, photographed by Seth G. Breeding
fig. d Seth G. Breeding, CC BY 4.0 / obs. 63523248
Packera plattensis, photographed by Annika Lindqvist
fig. e Annika Lindqvist, CC BY 4.0 / obs. 62838334
Packera plattensis, photographed by pobrito
fig. f pobrito, CC0 1.0 / obs. 40680829
Packera plattensis, photographed by Annika Lindqvist
fig. g Annika Lindqvist, CC BY 4.0 / obs. 33986646
Packera plattensis, photographed by Meghan Cassidy
fig. h Meghan Cassidy, CC BY-SA 4.0 / obs. 31645657

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 27 botanical countries

Regions where Packera plattensis is native: Arkansas, Colorado, Georgia, Illinois, Indiana, Iowa, Kansas, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Mexico, North Dakota, Ohio, Oklahoma, Ontario, Pennsylvania, Saskatchewan, South Dakota, Tennessee, Texas, Virginia, Wisconsin, Wyoming ArkansasColoradoGeorgiaIllinoisIndianaIowaKansasLouisianaMichiganMinnesotaMississippiMissouriMontanaNebraskaNew MexicoNorth DakotaOhioOklahomaOntarioPennsylvaniaSaskatchewanSouth DakotaTennesseeTexasVirginiaWisconsinWyoming
Native distribution of Packera plattensis, 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
Arkansas ARK NORTHERN AMERICA
Colorado COL
Georgia GEO
Illinois ILL
Indiana INI
Iowa IOW
Kansas KAN
Louisiana LOU
Michigan MIC
Minnesota MIN
Mississippi MSI
Missouri MSO
Montana MNT
Nebraska NEB
New Mexico NWM
North Dakota NDA
Ohio OHI
Oklahoma OKL
Ontario ONT
Pennsylvania PEN
Saskatchewan SAS
South Dakota SDA
Tennessee TEN
Texas TEX
Virginia VRG
Wisconsin WIS
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 245 in flower of 281 examined

Peak flowering in Jun. Each bar is the share of Packera plattensis 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. 245 of 281 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 1 synonym

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.

  • Senecio pseudotomentosus Mack. & Bush

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.