Euclidium syriacum(L.) W.T.Aiton

Syrian mustard

WFO wfo-0000681139 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Euclidium syriacum, photographed by Konstantin Grebennikov
fig. a Konstantin Grebennikov, CC BY 4.0 / 2021-05-06 / obs. 132189877
Euclidium syriacum, photographed by Konstantin Grebennikov
fig. b Konstantin Grebennikov, CC BY 4.0 / obs. 101195739
Euclidium syriacum, photographed by Tatyana Sova
fig. c Tatyana Sova, CC BY 4.0 / obs. 176646858
Euclidium syriacum, photographed by Konstantin Grebennikov
fig. d Konstantin Grebennikov, CC BY 4.0 / obs. 99961478
Euclidium syriacum, photographed by bulatik
fig. e bulatik, CC0 1.0 / obs. 200211449
Euclidium syriacum, photographed by Michael Kozlov
fig. f Michael Kozlov, CC BY 4.0 / obs. 202796381
Euclidium syriacum, photographed by Michael Kozlov
fig. g Michael Kozlov, CC BY 4.0 / obs. 201649958
Euclidium syriacum, photographed by Dmitriy Bochkov
fig. h Dmitriy Bochkov, CC BY 4.0 / obs. 158330313

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 24 botanical countries

Regions where Euclidium syriacum is native: Afghanistan, Iran, Iraq, Kazakhstan, Kirgizstan, Lebanon-Syria, Mongolia, North Caucasus, Palestine, Tadzhikistan, Transcaucasus, Türkiye, Turkmenistan, Uzbekistan, Xinjiang, Pakistan, West Himalaya, Bulgaria, Central European Russia, East European Russia, Krym, NW. Balkan Pen., South European Russia, Ukraine AfghanistanIranIraqKazakhstanKirgizstanLebanon-SyriaMongoliaNorth CaucasusPalestineTadzhikistanTranscaucasusTürkiyeTurkmenistanUzbekistanXinjiangPakistanWest HimalayaBulgariaCentral European RussiaEast European RussiaKrymNW. Balkan Pen.South European RussiaUkraine
Native distribution of Euclidium syriacum, 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
Afghanistan AFG ASIA-TEMPERATE
Iran IRN
Iraq IRQ
Kazakhstan KAZ
Kirgizstan KGZ
Lebanon-Syria LBS
Mongolia MON
North Caucasus NCS
Palestine PAL
Tadzhikistan TZK
Transcaucasus TCS
Türkiye TUR
Turkmenistan TKM
Uzbekistan UZB
Xinjiang CHX
Bulgaria BUL EUROPE
Central European Russia RUC
East European Russia RUE
Krym KRY
NW. Balkan Pen. YUG
South European Russia RUS
Ukraine UKR
Pakistan PAK ASIA-TROPICAL
West Himalaya WHM

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.

Where it actually grows measured, from 195 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -15.0 °C -8.8 °C -2.2 °C
Warmest month, mean daily high 24.4 °C 29.4 °C 35.4 °C
Annual rainfall 194 mm 416 mm 691 mm
Rainfall in the driest quarter 3 mm 78 mm 128 mm

It is found where winters bring hard frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 195 research-grade observations of Euclidium syriacum that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 12 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.

  • Anastatica hierachuntica Crantz
  • Anastatica syriaca L.
  • Bunias rostrata L'Hér. ex DC.
  • Bunias syriaca (L.) Gaertn.
  • Bunias syriaca (L.) M.Bieb.
  • Crucifera euclidium E.H.L.Krause
  • Hierochontis carniolica Medik.
  • Myagrum rigidum Pall.
  • Myagrum rostratum Scop.
  • Myagrum syriacum (L.) Crantz
  • Ornithorhynchium syriacum (L.) Röhl.
  • Soria syriaca Desv. ex Steud.

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.