Viola nephrophyllaGreene

northern bog violet

WFO wfo-0001144422 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Viola nephrophylla, photographed by Todd Boland
fig. a Todd Boland, CC BY 4.0 / 2022-06-10 / obs. 205003942
Viola nephrophylla, photographed by Shane Johnson
fig. b Shane Johnson, CC0 1.0 / obs. 204739791
Viola nephrophylla, photographed by Mary Krieger
fig. c Mary Krieger, CC BY 4.0 / obs. 204350741
Viola nephrophylla, photographed by Derek
fig. d Derek, CC BY 4.0 / obs. 203096438
Viola nephrophylla, photographed by Andrew Tree
fig. e Andrew Tree, CC BY 4.0 / obs. 202247898
Viola nephrophylla, photographed by Étienne Lacroix-Carignan
fig. f Étienne Lacroix-Carignan, CC0 1.0 / obs. 202073725
Viola nephrophylla, photographed by Derek
fig. g Derek, CC BY 4.0 / obs. 200489427
Viola nephrophylla, photographed by Braden J. Judson
fig. h Braden J. Judson, CC0 1.0 / obs. 202326880

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 47 botanical countries

Regions where Viola nephrophylla is native: Alberta, Arizona, Arkansas, British Columbia, California, Colorado, Connecticut, Idaho, Illinois, Indiana, Iowa, Kansas, Maine, Manitoba, Massachusetts, Mexico Northeast, Mexico Northwest, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Mexico, New York, Newfoundland, North Dakota, Northwest Territories, Nova Scotia, Nunavut, Ohio, Oklahoma, Ontario, Oregon, Prince Edward I., Québec, Saskatchewan, South Dakota, Texas, Utah, Vermont, Washington, Wisconsin, Wyoming, Yukon AlbertaArizonaArkansasBritish ColumbiaCaliforniaColoradoConnecticutIdahoIllinoisIndianaIowaKansasMaineManitobaMassachusettsMexico NortheastMexico NorthwestMichiganMinnesotaMissouriMontanaNebraskaNevadaNew BrunswickNew HampshireNew MexicoNew YorkNewfoundlandNorth DakotaNorthwest TerritoriesNova ScotiaNunavutOhioOklahomaOntarioOregonPrince Edward I.QuébecSaskatchewanSouth DakotaTexasUtahVermontWashingtonWisconsinWyomingYukon
Native distribution of Viola nephrophylla, 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
Alberta ABT NORTHERN AMERICA
Arizona ARI
Arkansas ARK
British Columbia BRC
California CAL
Colorado COL
Connecticut CNT
Idaho IDA
Illinois ILL
Indiana INI
Iowa IOW
Kansas KAN
Maine MAI
Manitoba MAN
Massachusetts MAS
Mexico Northeast MXE
Mexico Northwest MXN
Michigan MIC
Minnesota MIN
Missouri MSO
Montana MNT
Nebraska NEB
Nevada NEV
New Brunswick NBR
New Hampshire NWH
New Mexico NWM
New York NWY
Newfoundland NFL
North Dakota NDA
Northwest Territories NWT
Nova Scotia NSC
Nunavut NUN
Ohio OHI
Oklahoma OKL
Ontario ONT
Oregon ORE
Prince Edward I. PEI
Québec QUE
Saskatchewan SAS
South Dakota SDA
Texas TEX
Utah UTA
Vermont VER
Washington WAS
Wisconsin WIS
Wyoming WYO
Yukon YUK

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.

Also published as 17 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.

  • Viola arizonica Greene
  • Viola austinae Greene
  • Viola cognata Greene
  • Viola crassula Greene
  • Viola galacifolia Greene
  • Viola lunellii Greene
  • Viola nepetifolia Greene
  • Viola nephrophylla f. nephrophylla
  • Viola nephrophylla var. arizonica (Greene) Kearney & Peebles
  • Viola nephrophylla var. cognata (Greene) C.L.Hitchc.
  • Viola nephrophylla var. nephrophylla
  • Viola peramoena Greene
  • Viola pratincola Greene
  • Viola prionosepala Greene
  • Viola retusa Greene
  • Viola subjuncta Greene
  • Viola vagula Greene

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.