Example ⟳ +
An example collection, so you can see what this page does. Nothing added here is kept: leaving deletes it.

Sedum jerzedowskii Pérez-Calix

Crassulaceae · Mexico Northeast · listed by its genus as a cactus or succulent

Cited as Kew's World Checklist cites it, Sedum jerzedowskii Pérez-Calix: GBIF's backbone key for this page carries the name with another author, Pérez-Calif.

Photographs not checked iNaturalist was skipped (not asked) when this page was built. Not asked, or not answered, is not "none": nothing here claims there is none. Why the site says it this way.
Add one to my plants
Sow seed
Habitat figuresfrom few records
Coldest month, mean nightly low
5.0°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
20°C
May at the habitat CHELSA
Rain a year (median across the range)
1,967mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
24–38DLI
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
Wet summers: the rain comes June to October, read as a summer growing season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

From few records: 8 records in 4 grid cells. The records.

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 subshrub”.

Seasons

The rain rule reads a summer growing season: 70% of the median year's rain (1,481 mm of 1,966 mm) falls in June to October, warmer than the year (wet-season mean 15.0 °C against a yearly mean of 13.0 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: December to April.

Rain

1,966 mm in the median year at the habitat, 1,481 mm of it June to October. Wettest month September at 403 mm, driest month March at 44 mm. Across the grid cells of the range the year's total runs 1,793 mm to 2,109 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,967 mm, is the year's rain at the top of the page; the 1,966 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: 24 to 38 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 21, the highest 90th-percentile month 39).

Warmth and air
Temperature

Monthly means: the coldest month's mean nightly low 5.0 °C in January (across the grid cells of the range 3.9 °C to 6.0 °C), the warmest month's mean daily high 19.8 °C in May (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is 5.0 °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: 56 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 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

From few records: this habitat climate is read from 8 records in 4 grid cells; a page says so under 12 records or 5 cells, and shows the figures as read.

Habitat months, northern hemisphere

Habitat climate of Sedum jerzedowskii through the yearWarmest month May, mean daily high 20 °C; coldest month January, mean nightly low 5.0 °C; 1,966 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA. Habitat months, northern hemisphere.0°5°10°15°20°25°°C · day and nightcold quarter0100200300400500mm rainDLI 24–38RH 56–68%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 4 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 °C14 / 13–1415 / 14–1617 / 16–1819 / 18–2020 / 19–2119 / 18–2018 / 17–1918 / 17–2018 / 16–1916 / 15–1715 / 14–1614 / 13–15
Night °C5 / 4–66 / 5–77 / 6–910 / 8–1112 / 10–1312 / 11–1312 / 10–1311 / 10–1311 / 10–129 / 8–118 / 6–96 / 5–7
Rain mm53 / 47–5748 / 44–5344 / 39–4889 / 79–97119 / 106–131266 / 243–286343 / 314–366253 / 233–270403 / 369–428216 / 200–23182 / 74–9150 / 44–54
DLI25 / 22–2629 / 27–3034 / 32–3537 / 36–3838 / 37–3937 / 36–3735 / 35–3536 / 36–3630 / 29–3028 / 26–2926 / 24–2724 / 21–25
RH %58 / 55–6057 / 54–5956 / 53–5957 / 54–6061 / 58–6466 / 63–6767 / 65–6966 / 64–6868 / 66–6964 / 61–6659 / 56–6257 / 54–60

The daily extremes were not used: the correction for elevation, +1122 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 -10.8 °C, 1st-percentile night -3.8 °C.

How this section is made
Each figure is the median across the 4 grid cells holding the 8 in-range records, 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 1372:1617 (21.375, -99.125). 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 4 distinct grid cells holding 8 of the 8 in-range records; extremes and elevation at the typical cell 1372:1617 (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 21.50_-99.375, lapse-corrected +1122 m at 6.5 °C/km. Elevation: ETOPO 2022, 2165 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.
NativeMexico Northeast · 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 marker21.404, -99.093 · in the densest population, 13 records (100% of those in range)
Kew's description“succulent subshrub” · “desert or dry shrubland” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 13 georeferenced records inside the native range; the climate across the range on the 8 of them placed to within 10 km; the map shows only the 11 openly licensed ones, which alone would put the marker 1 km away. Under a dozen records behind the climate. 5 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 13 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Not checked. iNaturalist was skipped (not asked) when this page was built; GBIF's observation records with coordinates hold none. Not a statement that none exist.

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

Pinguicula martinezii Lentibulariaceae Salvia buchananii Salvia buchananii Buchanan's sage Photo: CC BY, Scott ZonaDryopteris wallichiana Dryopteris wallichiana Alpine woodfern Photo: CC BY, Harrison ColeSedum guatemalense Sedum guatemalense Crassulaceae Photo: CC BY, Neptalí Ramírez MarcialEcheveria nebularum Echeveria nebularum Crassulaceae Photo: CC BY, harrierBeschorneria yuccoides Beschorneria yuccoides Asparagaceae Photo: CC BY, Arnim Littek

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

GBIFPOWOIPNIWFOWikidata

The record

Family
Crassulaceae
Described by
Pérez-Calix
Native to
Mexico Northeast
Wild records
13 in range · 11 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 2026-10-22homonym key checked: GBIF holds no one usage of Sedum jerzedowskii Pérez-Calix under another key, so the key is left as it is; GBIF's key 5688149 is Sedum jerzedowskii Pérez-Calif; the page links Kew's Sedum jerzedowskii Pérez-Calix, and the name is cited as Kew cites it
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
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 21.50_-99.375, lapse-corrected +1122 m at 6.5 °C/km; read, and set aside: the correction for elevation, +1122 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 taxon inat.taxon not asked
iNaturalist photographs, wild inat.photos.wild not asked
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media nothing to reportasked 2026-10-22
Wikimedia Commons commons nothing to reportasked 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 6 datasets via GBIF.org; each carries its own licence.

Cultifolio

Opening your plants…