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Sedum formosanum; photograph author not stated, no rights reserved CC0author not stated, no rights reserved · observed growing wild · 2026-04-21

Sedum formosanum N.E.Br.

Alfred Stonecrop; Formosa stonecrop

Crassulaceae · Japan, Nansei-shoto +2 · listed by its genus as a cactus or succulent

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Sedum formosanum, photograph author not stated, no rights reservedSedum formosanum, photograph (c) Cheng-Te Hsu, some rights reserved (CC BY)Sedum formosanum, photograph (c) Kiwi Shen, some rights reserved (CC BY)Sedum formosanum, photograph (c) Licheng Shih, some rights reserved (CC BY)Sedum formosanum, photograph (c) Yung-Lun Lin, some rights reserved (CC BY)Sedum formosanum, photograph (c) Yung-Lun Lin, some rights reserved (CC BY) 53 photographs ›
Habitat figures
Coldest month, mean nightly low
14.4°C
Jan at the habitat, not a floor; extremes not used (the weather cell's ground is too far off) CHELSA
Warmest month, mean daily high
29°C
Jul and Aug at the habitat CHELSA
Rain a year (median across the range)
3,271mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
15–39DLI
Lowest to highest month (DLI) CHELSA
The year in your months, northern hemisphere
  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec
Rain spread: 70% of the median year's rain takes 8 months, so no short rainy season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

About the genus · Sedum

Sedum is a large genus of flowering plants in the family Crassulaceae, members of which are commonly known as stonecrops. The genus has been described as containing up to 600 species, subsequently reduced to 400–500. They are leaf succulents found primarily in the Northern Hemisphere, but extending into the southern hemisphere in Africa and South America. More on Wikipedia ›

Quoted from Wikipedia, "Sedum", CC BY-SA 4.0.

Cultivation

Grouped as a cactus or succulent, listed under the genus Sedum in the archetype table, and Kew describes it as “succulent biennial or subshrub”.

Seasons

The rain rule reads no short rainy season: 70% of the median year's rain (2,375 mm of 3,161 mm) takes 8 months, February to March, May to June and August to November. Mean temperature moves 11.9 °C between the warmest and coldest month. Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: February to May, August to September and November to December.

Rain

3,161 mm in the median year at the habitat, 2,375 mm of it February to March, May to June and August to November. Wettest month September at 456 mm, driest month December at 172 mm. Across the grid cells of the range the year's total runs 2,416 mm to 4,242 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 3,271 mm, is the year's rain at the top of the page; the 3,161 mm here is the median year's, the twelve monthly medians added, which the rain rule reads. Habitat calendar, northern hemisphere; median year across the grid cells of the range, CHELSA.

Light

Open sky over the habitat: 15 to 39 mol/m²/day across the year (daily light integral, median year across the grid cells of the range, CHELSA; the lowest 10th-percentile month across the cells is 13, the highest 90th-percentile month 41).

Warmth and air
Temperature

Monthly means: the coldest month's mean nightly low 14.4 °C in January (across the grid cells of the range 9.4 °C to 17.7 °C), the warmest month's mean daily high 28.5 °C in July and August (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is 14.4 °C, the coldest month's mean nightly low, January, in the median year (CHELSA); a month's mean of its nightly lows is warmer than the nights a floor is read from. The daily extremes were read at a weather cell whose ground is too far above or below the typical spot to correct for, and are not used.

Humidity

Relative humidity at the habitat: 61 to 68% across the year (monthly means, median year across the grid cells of the range, CHELSA). A figure about the air, saying nothing about how the plant takes water.

How this section is made

Each card states this species' habitat figures with their sources, and what two fixed rules read from them; nothing here says what the plant does, wants or tolerates. The rules · the terms.

Seasons. Read from the median year of CHELSA monthly rainfall and mean temperature across the grid cells of the range: the rain rule takes the smallest set of months carrying 70% of the rain and calls it winter when its mean is more than half a degree below the year's, summer when more than that above, and neither in between; the temperature rule, used only under 120 mm, names the cooler six months when they are at least a degree cooler than the other six. Months are shifted for the other hemisphere only where the temperature curve moves 4 °C or more and the habitat lies 10° or more from the equator. A reading of the curves, not an observation of the plant.

Rain. CHELSA monthly precipitation, median year across the grid cells of the range. The rain that falls where the species is recorded; nothing about how the plant takes water.

Light. CHELSA shortwave radiation at each envelope cell, a daily-mean flux taken to a daily total and converted at 2.07 mol of PAR per MJ. The sky over the habitat, measured; what reaches a plant under a rock, a shrub or a shade cloth is not.

Temperature. CHELSA monthly means, median year across the grid cells of the range. No cold floor is read without a daily extremes series; the coldest month's mean nightly low named in its sentence is not one. Not a measured survival limit for any plant in a pot.

Humidity. CHELSA relative humidity, median year across the grid cells of the range.

Group. Listed under the genus Sedum in the archetype table, and Kew describes it as “succulent biennial or subshrub”. A group is taken only where Kew's description of the species agrees with the table's listing. The table gives no figure and no prose; the cold floor is the habitat's alone.

Climate across the habitat

Habitat months, northern hemisphere

Habitat climate of Sedum formosanum through the yearWarmest months July and August, mean daily high 29 °C; coldest month January, mean nightly low 14.4 °C; 3,161 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA. Habitat months, northern hemisphere.5°10°15°20°25°30°35°°C · day and nightcold quarter0100200300400500600mm rainDLI 15–39RH 61–68%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 84 habitat cells, CHELSA cold quarter: the three months around the coldest month's mean nightly low DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C17 / 14–2017 / 15–2120 / 17–2322 / 20–2525 / 23–2727 / 25–2829 / 27–3029 / 27–3027 / 26–2825 / 23–2622 / 19–2419 / 15–21
Night °C14 / 9–1815 / 10–1816 / 12–2019 / 15–2222 / 19–2425 / 21–2626 / 24–2726 / 24–2725 / 22–2623 / 19–2520 / 16–2216 / 11–19
Rain mm186 / 109–287232 / 124–334229 / 149–284216 / 164–259285 / 240–350334 / 265–448212 / 164–338282 / 244–399456 / 267–587318 / 171–524239 / 126–453172 / 107–306
DLI15 / 13–1818 / 15–2124 / 22–2729 / 27–3232 / 29–3433 / 30–3739 / 35–4136 / 34–3830 / 29–3324 / 23–2718 / 16–2115 / 13–18
RH %62 / 55–7163 / 56–7165 / 58–7065 / 60–7166 / 63–7168 / 66–7167 / 65–7067 / 65–7066 / 63–7063 / 59–7063 / 56–6961 / 54–69

The daily extremes were not used: the correction for elevation, -1177 m, is beyond the 1,000 m either way that a lapse rate is applied over, so the weather cell's ground is other terrain than the typical spot's. So no cold floor is read for this species, and the coldest month's mean nightly low is not taken as one. What that cell gave, so corrected, over 44 years: absolute minimum 3.7 °C, 1st-percentile night 9.2 °C.

How this section is made
Each figure is the median across the 84 grid cells on land that hold in-range records (391 records in those cells; 22 more cells hold records but no land by the elevation layer, so those records sit at sea and the cells are left out), with the 10th–90th percentile span across those cells after the slash where it differs. A dash is a month one or more of those cells has no figure for in the grid (a variable CHELSA does not carry there), so no median is taken rather than one over fewer cells. Extremes and elevation were read at a typical spot in the range, cell 1321:6030 (23.925, 121.525). Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Across the range: median and 10th–90th percentile of each month across the 84 distinct grid cells holding 391 of the 435 in-range records (22 further cells with records at sea, by the elevation layer, left out); extremes and elevation at the typical cell 1321:6030 (its coldest month's mean nightly low nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell 24.00_121.250, lapse-corrected -1177 m at 6.5 °C/km. Elevation: ETOPO 2022, 146 m (cell mean).

Natural habitat

Native range as published by WCVP; the marker is where the records are densest and decides nothing: the climate was read across the cells of the in-range records placed well enough to read one, not at the marker.
Openly licensed records inside the range, framed on where they fall.
NativeJapan, Nansei-shoto, Taiwan, Philippines · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Map marker25.133, 121.823 · in the densest population, 400 records (75% of those in range)
Kew's description“succulent biennial or subshrub” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 536 georeferenced records inside the native range; the climate across the range on the 391 of them in the land cells it reads, of 435 placed to within 10 km; the map shows only the 172 openly licensed ones, which alone would put the marker 2 km away. 99 records outside the WCVP native range not used. 101 in-range records are placed to worse than 10 km, or with no stated accuracy (admitted only as a person's observation to three decimals), and stay on the map but off the climate.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population of the 536 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Sedum formosanum, photograph 1did not loadSedum formosanum, photograph 2did not loadSedum formosanum, photograph 3did not loadSedum formosanum, photograph 4did not loadSedum formosanum, photograph 5did not loadSedum formosanum, photograph 6did not load

Photographs: author not stated, no rights reserved · CC0; (c) Cheng-Te Hsu, some rights reserved (CC BY); (c) Kiwi Shen, some rights reserved (CC BY); (c) Licheng Shih, some rights reserved (CC BY); (c) Yung-Lun Lin, some rights reserved (CC BY) (2).

Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.

Schenkia japonica Schenkia japonica Gentianaceae Photo: CC0, 葉子Gynura formosana Gynura formosana Asteraceae Photo: CC0, author not statedElaeagnus formosana Elaeagnus formosana Elaeagnaceae Photo: CC BY, 如此甚好Alpinia formosana Alpinia formosana Zingiberaceae Photo: CC0, author not statedVaccinium wrightii Vaccinium wrightii Ericaceae Photo: CC BY, 賴碧珠Eupatorium luchuense Eupatorium luchuense Asteraceae Photo: CC BY, teresa lo

Other Sedum 114 in the reference

Sedum acre Sedum acre Biting stonecrop Photo: CC BY, Dmitriy BochkovSedum actinocarpum Sedum actinocarpum Crassulaceae Photo: CC BY, Francisca WuSedum adolphi Sedum adolphi Coppertone Stonecrop Photo: CC BY, chiuluanSedum album Sedum album White stonecrop Photo: CC BY, zebedeugalinha Sedum alexanderi Crassulaceae Sedum allantoides Sedum allantoides Crassulaceae Photo: CC BY, Leonardo O. Alvarado CárdenasSedum alpestre Sedum alpestre Alpine Stonecrop Photo: CC0, author not statedSedum andegavense Sedum andegavense Crassulaceae Photo: CC BY, zebedeugalinhaSedum anglicum Sedum anglicum English stonecrop Photo: CC BY, Jon DaviesSedum annuum Sedum annuum Annual stonecrop Photo: CC BY, Andreas SchneiderSedum atratum Sedum atratum Crassulaceae Photo: CC BY-SA, Emanuele SantarelliSedum bellum Sedum bellum Crassulaceae Photo: CC BY-SA, El Funcionario all 115 ›

Names & registers

GBIFPOWOIPNIWFOWikidataiNaturalist

The record

Family
Crassulaceae
Described by
N.E.Br.
Native to
Japan, Nansei-shoto, Taiwan +1
Wild records
536 in range · 172 open

Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →

Where this page came from built 2026-10-22
GBIF species record gbif.species answeredasked 2026-10-22
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 50 records within 1 km of a botanic garden, herbarium or zoo left out (50 at a zoo; Wikidata's list)
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 24.00_121.250, lapse-corrected -1177 m at 6.5 °C/km; read, and set aside: the correction for elevation, -1177 m, is beyond the 1,000 m either way that a lapse rate is applied over, so the weather cell's ground is other terrain than the typical spot's, so no cold floor is shown
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia nothing to reportasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild answeredasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media answeredasked 2026-10-22
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 23 datasets via GBIF.org; each carries its own licence.

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