Phedimus kamtschaticus(Fisch. & C.A.Mey.) 't Hart

orange stonecrop

WFO wfo-0000396553 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 6 observations

This species has been photographed under an open licence only 6 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.

Phedimus kamtschaticus, photographed by Quentin Groom
fig. a Quentin Groom, CC0 1.0 / 2020-08-15 / obs. 90046585
Phedimus kamtschaticus, photographed by Matt Scott
fig. b Matt Scott, CC BY 4.0 / obs. 73887855
Phedimus kamtschaticus, photographed by mister_bumble
fig. c mister_bumble, CC BY 4.0 / obs. 161471881
Phedimus kamtschaticus, photographed by Peter Gabler
fig. d Peter Gabler, CC0 1.0 / obs. 79892121
Phedimus kamtschaticus, photographed by mister_bumble
fig. e mister_bumble, CC BY 4.0 / obs. 72917840
Phedimus kamtschaticus, photographed by Matt Scott
fig. f Matt Scott, CC BY 4.0 / obs. 73885272
Phedimus kamtschaticus, photographed by Carrie Seltzer
fig. g Carrie Seltzer, CC BY 4.0 / obs. 4113117
Phedimus kamtschaticus, photographed by Peter Gabler
fig. h Peter Gabler, CC0 1.0 / obs. 79892079

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 13 botanical countries

Regions where Phedimus kamtschaticus is native: Amur, China North-Central, Inner Mongolia, Japan, Kamchatka, Khabarovsk, Korea, Kuril Is., Magadan, Manchuria, Primorye, Sakhalin, Yakutiya AmurChina North-CentralInner MongoliaJapanKamchatkaKhabarovskMagadanManchuriaPrimoryeSakhalinYakutiya Korea
Native distribution of Phedimus kamtschaticus, 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. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Amur AMU ASIA-TEMPERATE
China North-Central CHN
Inner Mongolia CHI
Japan JAP
Kamchatka KAM
Khabarovsk KHA
Korea KOR
Kuril Is. KUR
Magadan MAG
Manchuria CHM
Primorye PRM
Sakhalin SAK
Yakutiya YAK

Not drawn on the map: Kuril 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 231 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -21.4 °C -7.5 °C -1.0 °C
Warmest month, mean daily high 15.1 °C 20.7 °C 29.1 °C
Annual rainfall 524 mm 1,051 mm 1,664 mm
Rainfall in the driest quarter 40 mm 163 mm 278 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 231 research-grade observations of Phedimus kamtschaticus 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 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.

  • Aizopsis florifera (Praeger) P.V.Heath
  • Aizopsis kamtschatica (Fisch.) Grulich
  • Aizopsis kurilensis (Vorosch.) S.B.Gontch.
  • Aizopsis takesimensis (Nakai) P.V.Heath
  • Phedimus florifer (Praeger) 't Hart
  • Phedimus floriferus (Praeger) 't Hart
  • Phedimus takesimensis (Nakai) 't Hart
  • Sedum aizoon subsp. kamtschaticum (Fisch.) Fröd.
  • Sedum floriferum Praeger
  • Sedum kamtschaticum Fisch. & C.A.Mey.
  • Sedum kamtschaticum subsp. ellacombeanum (Praeger) R.T.Clausen
  • Sedum kurilense Vorosch.
  • Sedum sikokianum subsp. kurilense (Vorosch.) Vorosch.

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 SEKA. 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.