Arabis alpinaL.

alpine rockcress

WFO wfo-0000541864 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Arabis alpina, photographed by Jason Grant
fig. a Jason Grant, CC BY 4.0 / 2022-06-02 / obs. 202771406

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 41 botanical countries

Regions where Arabis alpina is native: DR Congo, Eritrea, Ethiopia, Kenya, Rwanda, Somalia, Tanzania, Uganda, East Aegean Is., Krasnoyarsk, Lebanon-Syria, Türkiye, West Siberia, Albania, Austria, Bulgaria, Corse, Czechia-Slovakia, Finland, Føroyar, France, Germany, Great Britain, Hungary, Iceland, Italy, North European Russia, Norway, NW. Balkan Pen., Poland, Romania, Spain, Svalbard, Sweden, Switzerland, Ukraine, Greenland, Labrador, Newfoundland, Nunavut, Québec DR CongoEritreaEthiopiaKenyaRwandaSomaliaTanzaniaUgandaEast Aegean Is.KrasnoyarskLebanon-SyriaTürkiyeWest SiberiaAlbaniaAustriaBulgariaCorseCzechia-SlovakiaFinlandFranceGermanyHungaryIcelandItalyNorth European RussiaNorwayNW. Balkan Pen.PolandRomaniaSpainSvalbardSwedenSwitzerlandUkraineGreenlandLabradorNewfoundlandNunavutQuébec Føroyar
Native distribution of Arabis alpina, 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
Bulgaria BUL
Corse COR
Czechia-Slovakia CZE
Finland FIN
Føroyar FOR
France FRA
Germany GER
Great Britain GRB
Hungary HUN
Iceland ICE
Italy ITA
North European Russia RUN
Norway NOR
NW. Balkan Pen. YUG
Poland POL
Romania ROM
Spain SPA
Svalbard SVA
Sweden SWE
Switzerland SWI
Ukraine UKR
DR Congo ZAI AFRICA
Eritrea ERI
Ethiopia ETH
Kenya KEN
Rwanda RWA
Somalia SOM
Tanzania TAN
Uganda UGA
East Aegean Is. EAI ASIA-TEMPERATE
Krasnoyarsk KRA
Lebanon-Syria LBS
Türkiye TUR
West Siberia WSB
Greenland GNL NORTHERN AMERICA
Labrador LAB
Newfoundland NFL
Nunavut NUN
Québec QUE

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 268 in flower of 302 examined

Proportion of examined Arabis alpina in flower, by month
Month In flower Examined Share 95% interval
Jan 1 2 too few examined
Feb 7 7 100% 65% to 100%
Mar 18 22 82% 61% to 93%
Apr 31 31 100% 89% to 100%
May 56 58 97% 88% to 99%
Jun 57 61 93% 84% to 97%
Jul 47 51 92% 82% to 97%
Aug 39 53 74% 60% to 84%
Sep 6 9 67% 35% to 88%
Oct 4 5 80% 38% to 96%
Nov 0 1 too few examined
Dec 2 2 too few examined

Peak flowering in Feb. Each bar is the share of Arabis alpina 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. 268 of 302 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 3 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.

Where it actually grows measured, from 1,484 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -20.8 °C -12.0 °C -0.3 °C
Warmest month, mean daily high 8.7 °C 15.2 °C 23.1 °C
Annual rainfall 661 mm 1,513 mm 2,556 mm
Rainfall in the driest quarter 101 mm 243 mm 458 mm

It is found where winters are severely cold. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 1,484 research-grade observations of Arabis alpina 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. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 44 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.

  • Arabidium alpestre Spach
  • Arabidium alpinum (L.) Fourr.
  • Arabidium saxaticola Fourr.
  • Arabis albida var. brevifolia (DC.) Boiss.
  • Arabis albida var. elata Sprague
  • Arabis alpina f. alpina
  • Arabis alpina f. impudica Greuter & J.Zaffran
  • Arabis alpina f. phyllopetala Fernald
  • Arabis alpina subsp. cantabrica (Leresche & Levier) Greuter & Burdet
  • Arabis alpina subsp. merinoi (Pau) Silva Pando, Rodr.Gracia & Valdés Berm.
  • Arabis alpina var. alpina
  • Arabis alpina var. clusiana (Schrank) DC.
  • Arabis alpina var. commutata Pau & Font Quer
  • Arabis alpina var. glabrata A.Blytt
  • Arabis alpina var. minor Lange
  • Arabis brevifolia DC.
  • Arabis cantabrica Leresche & Levier
  • Arabis caucasica subsp. brevifolia (DC.) Cullen
  • Arabis caucasica var. leiopoda Pau
  • Arabis clusiana Schrank
  • Arabis crispata Willd.
  • Arabis cuneifolia Hochst. ex A.Rich.
  • Arabis cuneifolia f. kiboensis O.E.Schulz
  • Arabis cuneifolia f. meruensis O.E.Schulz

and 20 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.