Aquilegia atrataW.D.J.Koch

Dark Columbine

WFO wfo-0000541131 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Aquilegia atrata, photographed by Andreas Stiller
fig. a Andreas Stiller, CC BY 4.0 / 2022-06-13 / obs. 205797866

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 6 botanical countries

Regions where Aquilegia atrata is native: Austria, France, Germany, Italy, NW. Balkan Pen., Switzerland AustriaFranceGermanyItalyNW. Balkan Pen.Switzerland
Native distribution of Aquilegia atrata, 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
Austria AUT EUROPE
France FRA
Germany GER
Italy ITA
NW. Balkan Pen. YUG
Switzerland SWI

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 585 in flower of 605 examined

Proportion of examined Aquilegia atrata in flower, by month
Month In flower Examined Share 95% interval
Jan 0 0 too few examined
Feb 0 0 too few examined
Mar 0 0 too few examined
Apr 27 33 82% 66% to 91%
May 186 195 95% 91% to 98%
Jun 252 256 98% 96% to 99%
Jul 112 113 99% 95% to 100%
Aug 8 8 100% 68% to 100%
Sep 0 0 too few examined
Oct 0 0 too few examined
Nov 0 0 too few examined
Dec 0 0 too few examined

Peak flowering in Aug. Each bar is the share of Aquilegia atrata 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. 585 of 605 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.

Where it actually grows measured, from 1,987 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -13.2 °C -7.2 °C -1.7 °C
Warmest month, mean daily high 16.4 °C 21.4 °C 25.5 °C
Annual rainfall 838 mm 1,381 mm 2,046 mm
Rainfall in the driest quarter 116 mm 207 mm 381 mm

It is found where winters bring hard frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 1,987 research-grade observations of Aquilegia atrata 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 13 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.

  • Aquilegia atrata var. cyanescens (Borbás ex Hegi) Munz
  • Aquilegia atrata var. major Erdner
  • Aquilegia atrata var. minor Erdner
  • Aquilegia atrata var. salvatoriana (Chenev.) Munz
  • Aquilegia atroviolacea Beck
  • Aquilegia atroviolacea var. cyanescens Dalla Torre & Sarnth.
  • Aquilegia vulgaris subsp. atrata (Koch) Gaudin
  • Aquilegia vulgaris subsp. atroviolacea (Av-Lall.) Rapaics
  • Aquilegia vulgaris var. atrata (Koch) Gren.
  • Aquilegia vulgaris var. atroviolacea Avé-Lall.
  • Aquilegia vulgaris var. cyanescens Borbás ex Hegi
  • Aquilegia vulgaris var. salvatoriana (Chenev.) Schinz
  • Aquilegia vulgaris var. salvatoriana Chenev.

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.