Kadenia dubia(Schkuhr) Lavrova & V.N.Tikhom.

WFO wfo-0000356533 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Kadenia dubia, photographed by Yurii Basov
fig. a Yurii Basov, CC BY 4.0 / 2022-06-11 / obs. 205091662

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 22 botanical countries

Regions where Kadenia dubia is native: Altay, Irkutsk, Kazakhstan, Krasnoyarsk, West Siberia, Yakutiya, Austria, Baltic States, Belarus, Central European Russia, Czechia-Slovakia, Denmark, East European Russia, Germany, Hungary, North European Russia, Northwest European Russia, Poland, Romania, South European Russia, Sweden, Ukraine AltayIrkutskKazakhstanKrasnoyarskWest SiberiaYakutiyaAustriaBaltic StatesBelarusCentral European RussiaCzechia-SlovakiaDenmarkEast European RussiaGermanyHungaryNorth European RussiaNorthwest European RussiaPolandRomaniaSouth European RussiaSwedenUkraine
Native distribution of Kadenia dubia, 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
Austria AUT EUROPE
Baltic States BLT
Belarus BLR
Central European Russia RUC
Czechia-Slovakia CZE
Denmark DEN
East European Russia RUE
Germany GER
Hungary HUN
North European Russia RUN
Northwest European Russia RUW
Poland POL
Romania ROM
South European Russia RUS
Sweden SWE
Ukraine UKR
Altay ALT ASIA-TEMPERATE
Irkutsk IRK
Kazakhstan KAZ
Krasnoyarsk KRA
West Siberia WSB
Yakutiya YAK

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 42 in flower of 59 examined

Proportion of examined Kadenia dubia 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 0 0 too few examined
May 0 2 too few examined
Jun 1 5 20% 4% to 62%
Jul 10 12 83% 55% to 95%
Aug 26 28 93% 77% to 98%
Sep 2 6 33% 10% to 70%
Oct 2 3 too few examined
Nov 1 3 too few examined
Dec 0 0 too few examined

Peak flowering in Aug. Each bar is the share of Kadenia dubia 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. 42 of 59 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 20 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.

  • Aethusa venosa Jess.
  • Angelica linearis (Schumach.) Hartm.
  • Cnidium cenolophioides Benth. & Hook.f.
  • Cnidium dubium (Schkuhr) Schmeil & Fitschen
  • Cnidium dubium (Schkuhr) Thell.
  • Cnidium sylvestre Grande
  • Cnidium venosum W.D.J.Koch
  • Ligusticum venosum Calest.
  • Meum venosum Baill.
  • Selinum cenolophioides Turcz. ex Ledeb.
  • Selinum dubium (Schkuhr) Leute
  • Selinum laevicaule Stokes
  • Selinum lineare Schumach.
  • Selinum pratense Spreng.
  • Selinum turfosum Baumg.
  • Selinum venosum (W.D.J.Koch) Prantl
  • Seseli dubium Schkuhr
  • Seseli selinoides Besser
  • Seseli venosum Hoffm.
  • Thysselinum cantabrigense Hoffm.

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.