Erysimum canum(Piller & Mitterp.) Polatschek

WFO wfo-0000678545 Accepted WFO 2026-06 3 photographs CC BY

Plate 1 figs. a–c · 1 observation

This species has been photographed under an open licence only 1 time, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Erysimum canum, photographed by Igor Balashov
fig. a Igor Balashov, CC BY 4.0 / 2021-08-03 / obs. 148347637
Erysimum canum, photographed by Igor Balashov
fig. b Igor Balashov, CC BY 4.0 / obs. 148348135
Erysimum canum, photographed by Igor Balashov
fig. c Igor Balashov, CC BY 4.0 / obs. 148348457

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 13 botanical countries

Regions where Erysimum canum is native: Kazakhstan, North Caucasus, West Siberia, Bulgaria, Central European Russia, Czechia-Slovakia, East European Russia, Hungary, Krym, NW. Balkan Pen., Romania, South European Russia, Ukraine KazakhstanNorth CaucasusWest SiberiaBulgariaCentral European RussiaCzechia-SlovakiaEast European RussiaHungaryKrymNW. Balkan Pen.RomaniaSouth European RussiaUkraine
Native distribution of Erysimum canum, 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
Bulgaria BUL EUROPE
Central European Russia RUC
Czechia-Slovakia CZE
East European Russia RUE
Hungary HUN
Krym KRY
NW. Balkan Pen. YUG
Romania ROM
South European Russia RUS
Ukraine UKR
Kazakhstan KAZ ASIA-TEMPERATE
North Caucasus NCS
West Siberia WSB

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 62 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -9.4 °C -5.8 °C -0.9 °C
Warmest month, mean daily high 23.5 °C 25.9 °C 27.5 °C
Annual rainfall 399 mm 578 mm 640 mm
Rainfall in the driest quarter 79 mm 100 mm 115 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 62 research-grade observations of Erysimum canum 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 10 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.

  • Cheiranthus canus Piller & Mitterp.
  • Cheiranthus sibiricus Juss. ex DC.
  • Cheiranthus virgatus Poir.
  • Cheirinia angustifolia Link
  • Erysimum angustifolium Ehrh.
  • Syrenia angustifolia (Ehrh.) Rchb.
  • Syrenia cana (Piller & Mitterp.) Neilr.
  • Syrenia ehrhartii Andrz. ex DC.
  • Syrenia praevisa Klokov
  • Syrenia ucrainica Klokov

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.