Senecio viscosusL.

sticky groundselsticky ragwort

WFO wfo-0000095374 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Senecio viscosus, photographed by Stephen James McWilliam
fig. a Stephen James McWilliam, CC0 1.0 / 2022-03-01 / obs. 181219706
Senecio viscosus, photographed by Ilkka Tuunainen
fig. b Ilkka Tuunainen, CC BY-SA 4.0 / obs. 169705426
Senecio viscosus, photographed by Patrick Hacker
fig. c Patrick Hacker, CC BY 4.0 / obs. 167725532
Senecio viscosus, photographed by Michael Andresek
fig. d Michael Andresek, CC BY 4.0 / obs. 165950134
Senecio viscosus, photographed by Justin Flint
fig. e Justin Flint, CC BY 4.0 / obs. 164368191
Senecio viscosus, photographed by Ian Whyte
fig. f Ian Whyte, CC0 1.0 / obs. 172674493
Senecio viscosus, photographed by Daniel Cahen
fig. g Daniel Cahen, CC BY 4.0 / obs. 158095563
Senecio viscosus, photographed by Силаева Татьяна Борисовна
fig. h Силаева Татьяна Борисовна, CC0 1.0 / obs. 157881152

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 30 botanical countries

Regions where Senecio viscosus is native: North Caucasus, Transcaucasus, Türkiye, Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Central European Russia, Czechia-Slovakia, Denmark, East European Russia, Finland, France, Germany, Greece, Hungary, Italy, Netherlands, North European Russia, Northwest European Russia, Norway, NW. Balkan Pen., Poland, Romania, Spain, Sweden, Switzerland, Ukraine North CaucasusTranscaucasusTürkiyeAlbaniaAustriaBaltic StatesBelarusBelgiumBulgariaCentral European RussiaCzechia-SlovakiaDenmarkEast European RussiaFinlandFranceGermanyGreeceHungaryItalyNetherlandsNorth European RussiaNorthwest European RussiaNorwayNW. Balkan Pen.PolandRomaniaSpainSwedenSwitzerlandUkraine
Native distribution of Senecio viscosus, 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
Albania ALB EUROPE
Austria AUT
Baltic States BLT
Belarus BLR
Belgium BGM
Bulgaria BUL
Central European Russia RUC
Czechia-Slovakia CZE
Denmark DEN
East European Russia RUE
Finland FIN
France FRA
Germany GER
Greece GRC
Hungary HUN
Italy ITA
Netherlands NET
North European Russia RUN
Northwest European Russia RUW
Norway NOR
NW. Balkan Pen. YUG
Poland POL
Romania ROM
Spain SPA
Sweden SWE
Switzerland SWI
Ukraine UKR
North Caucasus NCS ASIA-TEMPERATE
Transcaucasus TCS
Türkiye TUR

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 445 in flower of 507 examined

Peak flowering in Nov. Each bar is the share of Senecio viscosus 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. 445 of 507 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 5 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.

  • Obaejaca viscosa Cass.
  • Senecio calvertii Boiss.

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.