Borodinia laevigata(Muhl. ex Willd.) P.J.Alexander & Windham

smooth rockcress

WFO wfo-0001336530 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Borodinia laevigata, photographed by Ryan Sorrells
fig. a Ryan Sorrells, CC BY 4.0 / 2022-05-26 / obs. 200858061
Borodinia laevigata, photographed by Ryan Sorrells
fig. b Ryan Sorrells, CC BY 4.0 / obs. 200172108
Borodinia laevigata, photographed by Terri Koontz
fig. c Terri Koontz, CC0 1.0 / obs. 196809269
Borodinia laevigata, photographed by Ryan Sorrells
fig. d Ryan Sorrells, CC BY 4.0 / obs. 191165910
Borodinia laevigata, photographed by Ryan Sorrells
fig. e Ryan Sorrells, CC BY 4.0 / obs. 191159663
Borodinia laevigata, photographed by Elias
fig. f Elias, CC BY 4.0 / obs. 188606061
Borodinia laevigata, photographed by Elias
fig. g Elias, CC BY 4.0 / obs. 188195688
Borodinia laevigata, photographed by Michael J. Papay
fig. h Michael J. Papay, CC BY 4.0 / obs. 185340474

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 32 botanical countries

Regions where Borodinia laevigata is native: Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Ontario, Pennsylvania, Québec, South Carolina, South Dakota, Tennessee, Vermont, Virginia, West Virginia, Wisconsin AlabamaArkansasConnecticutGeorgiaIllinoisIndianaIowaKansasKentuckyMarylandMassachusettsMichiganMinnesotaMissouriNew HampshireNew JerseyNew YorkNorth CarolinaOhioOklahomaOntarioPennsylvaniaQuébecSouth CarolinaSouth DakotaTennesseeVermontVirginiaWest VirginiaWisconsin DelawareDistrict of Columbia
Native distribution of Borodinia laevigata, 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
Alabama ALA NORTHERN AMERICA
Arkansas ARK
Connecticut CNT
Delaware DEL
District of Columbia WDC
Georgia GEO
Illinois ILL
Indiana INI
Iowa IOW
Kansas KAN
Kentucky KTY
Maryland MRY
Massachusetts MAS
Michigan MIC
Minnesota MIN
Missouri MSO
New Hampshire NWH
New Jersey NWJ
New York NWY
North Carolina NCA
Ohio OHI
Oklahoma OKL
Ontario ONT
Pennsylvania PEN
Québec QUE
South Carolina SCA
South Dakota SDA
Tennessee TEN
Vermont VER
Virginia VRG
West Virginia WVA
Wisconsin WIS

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 269 in flower of 559 examined

Peak flowering in Apr. Each bar is the share of Borodinia laevigata 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. 269 of 559 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 6 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 14 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.

  • Arabis hastata Eaton
  • Arabis heterophylla Nutt.
  • Arabis laevigata (Muhl. ex Willd.) Poir.
  • Arabis laevigata Hook.
  • Arabis laevigata var. heterophylla (Nutt.) Farw.
  • Arabis laevigata var. laciniata Torr. & A.Gray
  • Arabis laevigata var. laevigata
  • Arabis laevigata var. minor Porter ex Alph.Wood
  • Arabis levigata Poir.
  • Arabis lyraefolia DC.
  • Arabis viridis var. heterophylla (Nutt.) Farw.
  • Boechera laevigata (Muhl. ex Willd.) Al-Shehbaz
  • Erysimum laevigatum Kuntze
  • Turritis laevigata Muhl. ex Willd.

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. USDA PLANTS Database. common name, checklist symbol ARLA. public domain. 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.