Cardamine umbellataGreene

WFO wfo-0000587646 Accepted WFO 2026-06 5 photographs CC BY

Plate 1 figs. a–e · 5 separate observations

Cardamine umbellata, photographed by Jason Grant
fig. a Jason Grant, CC BY 4.0 / 2018-07-05 / obs. 20983992
Cardamine umbellata, photographed by Jason Grant
fig. b Jason Grant, CC BY 4.0 / obs. 19960676
Cardamine umbellata, photographed by Matt Bowser
fig. c Matt Bowser, CC BY 4.0 / obs. 1858260
Cardamine umbellata, photographed by Jason Grant
fig. d Jason Grant, CC BY 4.0 / obs. 6860075
Cardamine umbellata, photographed by Jason Grant
fig. e Jason Grant, CC BY 4.0 / obs. 20896450

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.

The specimen a real sheet, in a real collection

Herbarium
Smithsonian, US National Herbarium
Accession
US 3503541
Filed as
Cardamine umbellata Greene
Det. by
Shetler, Stanwyn G., (US), NMNH
Collected
W. Sladen 1960-07-03
Origin
US
The sheet
View the digitised specimen (CC0 1.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 11 botanical countries

Regions where Cardamine umbellata is native: Kamchatka, Khabarovsk, Kuril Is., Magadan, Alaska, Alberta, Aleutian Is., British Columbia, Northwest Territories, Washington, Yukon KamchatkaKhabarovskMagadanAlaskaAlbertaBritish ColumbiaNorthwest TerritoriesWashingtonYukon
Native distribution of Cardamine umbellata, 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
Alaska ASK NORTHERN AMERICA
Alberta ABT
Aleutian Is. ALU
British Columbia BRC
Northwest Territories NWT
Washington WAS
Yukon YUK
Kamchatka KAM ASIA-TEMPERATE
Khabarovsk KHA
Kuril Is. KUR
Magadan MAG

Not drawn on the map: Kuril Is., Aleutian Is.. We hold no public-domain boundary for these regions, so they are listed rather than guessed at.

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.

Where it actually grows measured, from 66 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -20.6 °C -3.9 °C 1.6 °C
Warmest month, mean daily high 10.2 °C 15.4 °C 20.6 °C
Annual rainfall 791 mm 2,973 mm 4,119 mm
Rainfall in the driest quarter 90 mm 333 mm 524 mm

It is found where winters are severely cold. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 66 research-grade observations of Cardamine umbellata 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.

Also published as 10 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.

  • Cardamine flexuosa var. kamtschatica (Regel) Matsum.
  • Cardamine hirsuta subsp. kamtschatica O.E.Schulz
  • Cardamine hirsuta var. kamtschatica (Regel) O.E.Schulz
  • Cardamine hirsuta var. parviflora Rodway
  • Cardamine kamtschatica (Regel) Piper
  • Cardamine oligosperma subsp. kamtschatica (Regel) Cody
  • Cardamine oligosperma var. kamtschatica (Regel) Detling
  • Cardamine oligosperma var. kamtschatica (Regel) M.Peck
  • Cardamine sylvatica var. kamtschatica Regel
  • Cardamine unalaschcensis Amdrz. ex Ledeb.

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. 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.