Thalictrum venulosumTrel.

veiny meadow-rue

WFO wfo-0001129279 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Thalictrum venulosum, photographed by Mary Krieger
fig. a Mary Krieger, CC BY 4.0 / 2021-10-31 / obs. 172380481
Thalictrum venulosum, photographed by Mary Krieger
fig. b Mary Krieger, CC BY 4.0 / obs. 166451823
Thalictrum venulosum, photographed by Mary Krieger
fig. c Mary Krieger, CC BY 4.0 / obs. 164897892
Thalictrum venulosum, photographed by Mary Krieger
fig. d Mary Krieger, CC BY 4.0 / obs. 164766778
Thalictrum venulosum, photographed by Mary Krieger
fig. e Mary Krieger, CC BY 4.0 / obs. 164144374
Thalictrum venulosum, photographed by Mary Krieger
fig. f Mary Krieger, CC BY 4.0 / obs. 161160430
Thalictrum venulosum, photographed by Mary Krieger
fig. g Mary Krieger, CC BY 4.0 / obs. 161160100
Thalictrum venulosum, photographed by Mary Krieger
fig. h Mary Krieger, CC BY 4.0 / obs. 158608898

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 24 botanical countries

Regions where Thalictrum venulosum is native: Alberta, British Columbia, Colorado, Idaho, Manitoba, Minnesota, Montana, Nebraska, Nevada, New Mexico, New York, North Dakota, Northwest Territories, Nunavut, Ontario, Oregon, Québec, Saskatchewan, South Dakota, Utah, Washington, Wisconsin, Wyoming, Yukon AlbertaBritish ColumbiaColoradoIdahoManitobaMinnesotaMontanaNebraskaNevadaNew MexicoNew YorkNorth DakotaNorthwest TerritoriesNunavutOntarioOregonQuébecSaskatchewanSouth DakotaUtahWashingtonWisconsinWyomingYukon
Native distribution of Thalictrum venulosum, 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
British Columbia BRC
Colorado COL
Idaho IDA
Manitoba MAN
Minnesota MIN
Montana MNT
Nebraska NEB
Nevada NEV
New Mexico NWM
New York NWY
North Dakota NDA
Northwest Territories NWT
Nunavut NUN
Ontario ONT
Oregon ORE
Québec QUE
Saskatchewan SAS
South Dakota SDA
Utah UTA
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.

Flowering 61 in flower of 116 examined

Peak flowering in Jun. Each bar is the share of Thalictrum venulosum 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. 61 of 116 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 7 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.

  • Leucocoma lunellii Lunell
  • Leucocoma thyrsoidea Lunell
  • Thalictrum campestre Greene
  • Thalictrum columbianum Rydb.
  • Thalictrum confine var. columbianum (Rydb.) B.Boivin
  • Thalictrum confine var. greeneanum B.Boivin
  • Thalictrum fissum Greene
  • Thalictrum fissum var. greeneanum (B.Boivin) B.Boivin
  • Thalictrum lunellii Greene
  • Thalictrum occidentale var. columbianum (Rydb.) H.St.John
  • Thalictrum thyrsoideum Greene
  • Thalictrum thyrsoideum var. silvanum Lunell
  • Thalictrum venulosum var. fissum (Greene) B.Boivin
  • Thalictrum venulosum var. lunellii (Greene) B.Boivin

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.