Ranunculus polyanthemosL.

WFO wfo-0000463507 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Ranunculus polyanthemos, photographed by Vladimir Atachkin
fig. a Vladimir Atachkin, CC BY 4.0 / 2022-06-11 / obs. 205109656

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 50 botanical countries

Regions where Ranunculus polyanthemos is native: Altay, Buryatiya, Chita, Iran, Iraq, Irkutsk, Kazakhstan, Khabarovsk, Kirgizstan, Krasnoyarsk, Magadan, Mongolia, North Caucasus, Primorye, Transcaucasus, Türkiye, Turkmenistan, Tuva, Uzbekistan, West Siberia, Xinjiang, Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Central European Russia, Corse, Czechia-Slovakia, Denmark, East European Russia, Finland, France, Germany, Greece, Hungary, Italy, Krym, Netherlands, North European Russia, Northwest European Russia, Norway, NW. Balkan Pen., Poland, Romania, South European Russia, Sweden, Türkiye-in-Europe, Ukraine AltayBuryatiyaChitaIranIraqIrkutskKazakhstanKhabarovskKirgizstanKrasnoyarskMagadanMongoliaNorth CaucasusPrimoryeTranscaucasusTürkiyeTurkmenistanTuvaUzbekistanWest SiberiaXinjiangAlbaniaAustriaBaltic StatesBelarusBelgiumBulgariaCentral European RussiaCorseCzechia-SlovakiaDenmarkEast European RussiaFinlandFranceGermanyGreeceHungaryItalyKrymNetherlandsNorth European RussiaNorthwest European RussiaNorwayNW. Balkan Pen.PolandRomaniaSouth European RussiaSwedenTürkiye-in-EuropeUkraine
Native distribution of Ranunculus polyanthemos, 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
Corse COR
Czechia-Slovakia CZE
Denmark DEN
East European Russia RUE
Finland FIN
France FRA
Germany GER
Greece GRC
Hungary HUN
Italy ITA
Krym KRY
Netherlands NET
North European Russia RUN
Northwest European Russia RUW
Norway NOR
NW. Balkan Pen. YUG
Poland POL
Romania ROM
South European Russia RUS
Sweden SWE
Türkiye-in-Europe TUE
Ukraine UKR
Altay ALT ASIA-TEMPERATE
Buryatiya BRY
Chita CTA
Iran IRN
Iraq IRQ
Irkutsk IRK
Kazakhstan KAZ
Khabarovsk KHA
Kirgizstan KGZ
Krasnoyarsk KRA
Magadan MAG
Mongolia MON
North Caucasus NCS
Primorye PRM
Transcaucasus TCS
Türkiye TUR
Turkmenistan TKM
Tuva TVA
Uzbekistan UZB
West Siberia WSB
Xinjiang CHX

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 299 in flower of 345 examined

Proportion of examined Ranunculus polyanthemos in flower, by month
Month In flower Examined Share 95% interval
Jan 0 0 too few examined
Feb 0 0 too few examined
Mar 0 0 too few examined
Apr 11 15 73% 48% to 89%
May 88 105 84% 76% to 90%
Jun 138 150 92% 87% to 95%
Jul 37 47 79% 65% to 88%
Aug 14 16 88% 64% to 97%
Sep 6 6 100% 61% to 100%
Oct 5 5 100% 57% to 100%
Nov 0 0 too few examined
Dec 0 1 too few examined

Peak flowering in Sep. Each bar is the share of Ranunculus polyanthemos 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. 299 of 345 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 5 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.

  • Ranunculus ambiguus Jord.
  • Ranunculus binatiformis (A.Nyár.) Soó
  • Ranunculus meyerianus Rupr.
  • Ranunculus pseudoparviflorus H.Lév.
  • Ranunculus thomasii Ten.

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. 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.