Rumex triangulivalvis(Danser) Rech.f.

Mexican dockwillow-leaved dock

WFO wfo-0001100861 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Rumex triangulivalvis, photographed by Matt Lavin
fig. a Matt Lavin, CC BY 4.0 / 2021-07-31 / obs. 190934610
Rumex triangulivalvis, photographed by Syd Cannings
fig. b Syd Cannings, CC BY 4.0 / obs. 83453840
Rumex triangulivalvis, photographed by mfeaver
fig. c mfeaver, CC BY 4.0 / obs. 48868631
Rumex triangulivalvis, photographed by Lauren McLaurin
fig. d Lauren McLaurin, CC BY 4.0 / obs. 47409974
Rumex triangulivalvis, photographed by Syd Cannings
fig. e Syd Cannings, CC BY 4.0 / obs. 44998302
Rumex triangulivalvis, photographed by mfeaver
fig. f mfeaver, CC BY 4.0 / obs. 24393502
Rumex triangulivalvis, photographed by mfeaver
fig. g mfeaver, CC BY 4.0 / obs. 23130661
Rumex triangulivalvis, photographed by Syd Cannings
fig. h Syd Cannings, CC BY 4.0 / obs. 22122466

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 49 botanical countries

Regions where Rumex triangulivalvis is native: Alberta, Arizona, British Columbia, California, Colorado, Connecticut, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Labrador, Maine, Manitoba, Massachusetts, Mexico Northeast, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Dakota, Northwest Territories, Nova Scotia, Ohio, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Dakota, Texas, Utah, Vermont, Washington, West Virginia, Wisconsin, Wyoming, Yukon AlbertaArizonaBritish ColumbiaCaliforniaColoradoConnecticutIdahoIllinoisIndianaIowaKansasKentuckyLabradorMaineManitobaMassachusettsMexico NortheastMichiganMinnesotaMissouriMontanaNebraskaNevadaNew BrunswickNew HampshireNew JerseyNew MexicoNew YorkNewfoundlandNorth DakotaNorthwest TerritoriesNova ScotiaOhioOntarioOregonPennsylvaniaPrince Edward I.QuébecSaskatchewanSouth DakotaTexasUtahVermontWashingtonWest VirginiaWisconsinWyomingYukon Rhode I.
Native distribution of Rumex triangulivalvis, 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
Alberta ABT NORTHERN AMERICA
Arizona ARI
British Columbia BRC
California CAL
Colorado COL
Connecticut CNT
Idaho IDA
Illinois ILL
Indiana INI
Iowa IOW
Kansas KAN
Kentucky KTY
Labrador LAB
Maine MAI
Manitoba MAN
Massachusetts MAS
Mexico Northeast MXE
Michigan MIC
Minnesota MIN
Missouri MSO
Montana MNT
Nebraska NEB
Nevada NEV
New Brunswick NBR
New Hampshire NWH
New Jersey NWJ
New Mexico NWM
New York NWY
Newfoundland NFL
North Dakota NDA
Northwest Territories NWT
Nova Scotia NSC
Ohio OHI
Ontario ONT
Oregon ORE
Pennsylvania PEN
Prince Edward I. PEI
Québec QUE
Rhode I. RHO
Saskatchewan SAS
South Dakota SDA
Texas TEX
Utah UTA
Vermont VER
Washington WAS
West Virginia WVA
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 1 synonym

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.

  • Rumex salicifolius subsp. triangulivalvis Danser

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.