Saxifraga bronchialisL.

yellowdot saxifrage

WFO wfo-0000494681 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Saxifraga bronchialis, photographed by Shane Johnson
fig. a Shane Johnson, CC0 1.0 / 2022-06-05 / obs. 204672259

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 3503574
Filed as
Saxifraga bronchialis subsp. funstonii (Small) Hultén
Det. by
Shetler, Stanwyn G., (US), NMNH
Collected
W. Sladen 1960-07-30
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 35 botanical countries

Regions where Saxifraga bronchialis is native: Altay, Amur, Buryatiya, Chita, Inner Mongolia, Irkutsk, Japan, Kamchatka, Khabarovsk, Krasnoyarsk, Kuril Is., Magadan, Manchuria, Mongolia, Primorye, Sakhalin, Tuva, West Siberia, Yakutiya, East European Russia, North European Russia, Alaska, Alberta, Aleutian Is., British Columbia, Colorado, Idaho, Montana, New Mexico, Northwest Territories, Oregon, Utah, Washington, Wyoming, Yukon AltayAmurBuryatiyaChitaInner MongoliaIrkutskJapanKamchatkaKhabarovskKrasnoyarskMagadanManchuriaMongoliaPrimoryeSakhalinTuvaWest SiberiaYakutiyaEast European RussiaNorth European RussiaAlaskaAlbertaBritish ColumbiaColoradoIdahoMontanaNew MexicoNorthwest TerritoriesOregonUtahWashingtonWyomingYukon
Native distribution of Saxifraga bronchialis, 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
Inner Mongolia CHI
Irkutsk IRK
Japan JAP
Kamchatka KAM
Khabarovsk KHA
Krasnoyarsk KRA
Kuril Is. KUR
Magadan MAG
Manchuria CHM
Mongolia MON
Primorye PRM
Sakhalin SAK
Tuva TVA
West Siberia WSB
Yakutiya YAK
Alaska ASK NORTHERN AMERICA
Alberta ABT
Aleutian Is. ALU
British Columbia BRC
Colorado COL
Idaho IDA
Montana MNT
New Mexico NWM
Northwest Territories NWT
Oregon ORE
Utah UTA
Washington WAS
Wyoming WYO
Yukon YUK
East European Russia RUE EUROPE
North European Russia RUN

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.

Flowering 348 in flower of 432 examined

Proportion of examined Saxifraga bronchialis 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 1 7 14% 3% to 51%
May 8 17 47% 26% to 69%
Jun 80 90 89% 81% to 94%
Jul 169 186 91% 86% to 94%
Aug 77 101 76% 67% to 83%
Sep 12 26 46% 29% to 65%
Oct 1 5 20% 4% to 62%
Nov 0 0 too few examined
Dec 0 0 too few examined

Peak flowering in Jul. Each bar is the share of Saxifraga bronchialis 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. 348 of 432 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 5 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 1,975 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -21.8 °C -14.7 °C -5.3 °C
Warmest month, mean daily high 13.2 °C 18.3 °C 24.3 °C
Annual rainfall 445 mm 991 mm 3,296 mm
Rainfall in the driest quarter 57 mm 156 mm 329 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 1,975 research-grade observations of Saxifraga bronchialis 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 39 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.

  • Ciliaria austromontana (Wiegand) W.A.Weber
  • Ciliaria bronchialis (L.) Haw.
  • Ciliaria funstonii (Small) W.A.Weber
  • Leptasea austromontana (Wiegand) Small
  • Leptasea bronchialis (L.) Kom.
  • Leptasea funstonii Small
  • Saxifraga austromontana Wiegand
  • Saxifraga bronchialis f. burseriana Engl. & Irmsch.
  • Saxifraga bronchialis f. eucherlerioides Engl.
  • Saxifraga bronchialis f. laxa (Hara) T.Shimizu
  • Saxifraga bronchialis f. piceifolia Engl. & Irmsch.
  • Saxifraga bronchialis f. rebunshirensis Engl. & Irmsch.
  • Saxifraga bronchialis f. togakushensis (H.Hara) Toyok. & Nosaka
  • Saxifraga bronchialis f. typica Engl. & Irmsch.
  • Saxifraga bronchialis subsp. codyana (Zhmylev) Cody
  • Saxifraga bronchialis var. austromontana (Wiegand) M.Peck
  • Saxifraga bronchialis var. congesta Trautv. & C.A.Mey.
  • Saxifraga bronchialis var. funstonii (Small) Rosend.
  • Saxifraga bronchialis var. purpureomaculata Hultén
  • Saxifraga caulescens Sipliv.
  • Saxifraga cherlerioides f. laxa H.Hara
  • Saxifraga cherlerioides f. togakushensis (H.Hara) Ohwi
  • Saxifraga cherlerioides var. rebunshirensis (Engl. & Irmsch.) H.Hara
  • Saxifraga cherlerioides var. togakushensis H.Hara

and 15 more.

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.