Micranthes foliolosa(R.Br.) Gornall

leafystem saxifrage

WFO wfo-0001280031 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 3 observations

This species has been photographed under an open licence only 3 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Micranthes foliolosa, photographed by nina_nesterova
fig. a nina_nesterova, CC BY 4.0 / 2021-07-13 / obs. 144032508
Micranthes foliolosa, photographed by Rose Zappa
fig. b Rose Zappa, CC BY 4.0 / obs. 23197564
Micranthes foliolosa, photographed by Rose Zappa
fig. c Rose Zappa, CC BY 4.0 / obs. 23195785
Micranthes foliolosa, photographed by Rose Zappa
fig. d Rose Zappa, CC BY 4.0 / obs. 23197557
Micranthes foliolosa, photographed by Rose Zappa
fig. e Rose Zappa, CC BY 4.0 / obs. 23195791
Micranthes foliolosa, photographed by nina_nesterova
fig. f nina_nesterova, CC BY 4.0 / obs. 144032534
Micranthes foliolosa, photographed by Rose Zappa
fig. g Rose Zappa, CC BY 4.0 / obs. 23195796
Micranthes foliolosa, photographed by nina_nesterova
fig. h nina_nesterova, CC BY 4.0 / obs. 144032521

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 28 botanical countries

Regions where Micranthes foliolosa is native: Altay, Amur, Buryatiya, Chita, Irkutsk, Kamchatka, Khabarovsk, Krasnoyarsk, Magadan, Tuva, West Siberia, Yakutiya, Iceland, North European Russia, Norway, Svalbard, Sweden, Alaska, Aleutian Is., Colorado, Greenland, Labrador, Maine, Newfoundland, Northwest Territories, Nunavut, Québec, Yukon AltayAmurBuryatiyaChitaIrkutskKamchatkaKhabarovskKrasnoyarskMagadanTuvaWest SiberiaYakutiyaIcelandNorth European RussiaNorwaySvalbardSwedenAlaskaColoradoGreenlandLabradorMaineNewfoundlandNorthwest TerritoriesNunavutQuébecYukon
Native distribution of Micranthes foliolosa, 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
Altay ALT ASIA-TEMPERATE
Amur AMU
Buryatiya BRY
Chita CTA
Irkutsk IRK
Kamchatka KAM
Khabarovsk KHA
Krasnoyarsk KRA
Magadan MAG
Tuva TVA
West Siberia WSB
Yakutiya YAK
Alaska ASK NORTHERN AMERICA
Aleutian Is. ALU
Colorado COL
Greenland GNL
Labrador LAB
Maine MAI
Newfoundland NFL
Northwest Territories NWT
Nunavut NUN
Québec QUE
Yukon YUK
Iceland ICE EUROPE
North European Russia RUN
Norway NOR
Svalbard SVA
Sweden SWE

Not drawn on the map: Aleutian Is.. We hold no public-domain boundary for this region, so it is 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 104 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -35.5 °C -26.9 °C -18.2 °C
Warmest month, mean daily high 4.6 °C 13.1 °C 16.9 °C
Annual rainfall 241 mm 507 mm 1,324 mm
Rainfall in the driest quarter 25 mm 67 mm 238 mm

It is found where winters are arctic. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 104 research-grade observations of Micranthes foliolosa 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 9 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.

  • Hydatica foliolosa Small
  • Saxifraga comosa Fellm.
  • Saxifraga comosa Britton
  • Saxifraga foliolosa R.Br.
  • Saxifraga foliosa D.Dietr.
  • Saxifraga stellaris f. comosa (Retz.) Wahlenb.
  • Saxifraga stellaris subsp. comosa (Retz.) Braun-Blanq.
  • Saxifraga stellaris var. comosa Retz.
  • Spatularia foliolosa Small

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. USDA PLANTS Database. common name, checklist symbol SAFO4. public domain. 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.