Rorippa amphibia(L.) Besser

Great Yellow-cressgreat yellowcress

WFO wfo-0000399575 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Rorippa amphibia, photographed by Марина Садыкова
fig. a Марина Садыкова, CC BY 4.0 / 2022-06-04 / obs. 203244566
Rorippa amphibia, photographed by Elizabete Marchante
fig. b Elizabete Marchante, CC BY 4.0 / obs. 199603973
Rorippa amphibia, photographed by Анна Кириченко
fig. c Анна Кириченко, CC BY 4.0 / obs. 197556780
Rorippa amphibia, photographed by Patrick Hacker
fig. d Patrick Hacker, CC BY 4.0 / obs. 197796108
Rorippa amphibia, photographed by Силаева Татьяна Борисовна
fig. e Силаева Татьяна Борисовна, CC0 1.0 / obs. 165158895
Rorippa amphibia, photographed by Yurii Basov
fig. f Yurii Basov, CC BY 4.0 / obs. 162650564
Rorippa amphibia, photographed by Марина Садыкова
fig. g Марина Садыкова, CC BY 4.0 / obs. 162655047
Rorippa amphibia, photographed by Yurii Basov
fig. h Yurii Basov, CC BY 4.0 / obs. 156877268

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 48 botanical countries

Regions where Rorippa amphibia is native: Algeria, Altay, Iran, Iraq, Irkutsk, Kazakhstan, Krasnoyarsk, Lebanon-Syria, North Caucasus, Transcaucasus, Türkiye, Tuva, West Siberia, Yakutiya, Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Central European Russia, Corse, Czechia-Slovakia, Denmark, East European Russia, Finland, France, Germany, Great Britain, Greece, Hungary, Ireland, Italy, Krym, Netherlands, North European Russia, Northwest European Russia, NW. Balkan Pen., Poland, Portugal, Romania, Sardegna, South European Russia, Spain, Sweden, Switzerland, Türkiye-in-Europe, Ukraine AlgeriaAltayIranIraqIrkutskKazakhstanKrasnoyarskLebanon-SyriaNorth CaucasusTranscaucasusTürkiyeTuvaWest SiberiaYakutiyaAlbaniaAustriaBaltic StatesBelarusBelgiumBulgariaCentral European RussiaCorseCzechia-SlovakiaDenmarkEast European RussiaFinlandFranceGermanyGreeceHungaryIrelandItalyKrymNetherlandsNorth European RussiaNorthwest European RussiaNW. Balkan Pen.PolandPortugalRomaniaSouth European RussiaSpainSwedenSwitzerlandTürkiye-in-EuropeUkraine Sardegna
Native distribution of Rorippa amphibia, 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
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
Great Britain GRB
Greece GRC
Hungary HUN
Ireland IRE
Italy ITA
Krym KRY
Netherlands NET
North European Russia RUN
Northwest European Russia RUW
NW. Balkan Pen. YUG
Poland POL
Portugal POR
Romania ROM
Sardegna SAR
South European Russia RUS
Spain SPA
Sweden SWE
Switzerland SWI
Türkiye-in-Europe TUE
Ukraine UKR
Altay ALT ASIA-TEMPERATE
Iran IRN
Iraq IRQ
Irkutsk IRK
Kazakhstan KAZ
Krasnoyarsk KRA
Lebanon-Syria LBS
North Caucasus NCS
Transcaucasus TCS
Türkiye TUR
Tuva TVA
West Siberia WSB
Yakutiya YAK
Algeria ALG AFRICA

Not drawn on the map: Great Britain. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

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 144 in flower of 187 examined

Peak flowering in Jun. Each bar is the share of Rorippa amphibia 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. 144 of 187 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 7 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 39 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.

  • Armoracia amphibia (L.) Peterm.
  • Armoracia aquatica (Mill.) Kostel.
  • Armoracia natans Hook. & Arn.
  • Brachiolobos amphibius (L.) All.
  • Brachiolobos riparius Schur
  • Camelina aquatica (Mill.) Brot.
  • Camelina fluviatilis Guss.
  • Cardamine amphibia Kuntze
  • Cardamine amphibia (L.) Bubani
  • Caroli-gmelina lancifolia G.Gaertn., B.Mey. & Scherb.
  • Caroli-gmelina palustris G.Gaertn., B.Mey. & Scherb.
  • Cochlearia amphibia Ledeb.
  • Crucifera amphibia (L.) E.H.L.Krause
  • Myagrum amphibium (L.) Loisel.
  • Myagrum aquaticum (Mill.) Lam.
  • Nasturtium amphibium (L.) R.Br.
  • Nasturtium amphibium var. indivisum DC.
  • Nasturtium amphibium var. variifolium DC.
  • Nasturtium commutatum Opiz
  • Nasturtium fluviatile (Guss.) Bertol.
  • Nasturtium natans DC.
  • Nasturtium tentaculatum Wallr.
  • Radicula amphibia (L.) Druce
  • Radicula lancifolia Moench

and 15 more.

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.