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Androsace chamaejasme; photograph Andrea Schieber, CC BY-SA, via GBIF CC BY-SAAndrea Schieber, CC BY-SA, via GBIF

Androsace chamaejasme Wulfen

Sweetflower Rockjasmine; Sweet-flowered fairy-candelabra; Sweet-flowered rock-jasmine

Primulaceae · Austria, Czechoslovakia +12

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Androsace chamaejasme, photograph Andrea Schieber, CC BY-SA, via GBIFAndrosace chamaejasme, photograph Milan Chytrý, CC BY, iNaturalist via GBIFAndrosace chamaejasme, photograph Jonathan, CC BY, iNaturalist via GBIFAndrosace chamaejasme, photograph arthur_haendler, CC BY, iNaturalist via GBIFAndrosace chamaejasme, photograph arthur_haendler, CC BY, iNaturalist via GBIFAndrosace chamaejasme, photograph arthur_haendler, CC BY, iNaturalist via GBIF 24 photographs ›
Habitat figures
Coldest month, mean nightly low
-12.8°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
16°C
Jul and Aug at the habitat CHELSA
Rain a year (median across the range)
1,837mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
8–36DLI
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.

Cultivation

Seasons

The rain rule reads no short rainy season: 70% of the median year's rain (1,360 mm of 1,832 mm) takes 8 months, March, May to September and November to December. Mean temperature moves 19.6 °C between the warmest and coldest month. Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: November to March, May to June and September.

Rain

1,832 mm in the median year at the habitat, 1,360 mm of it March, May to September and November to December. Wettest month July at 219 mm, driest month February at 105 mm. Across the grid cells of the range the year's total runs 1,233 mm to 2,526 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,837 mm, is the year's rain at the top of the page; the 1,832 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: 8 to 36 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 5, the highest 90th-percentile month 38).

Warmth and air
Temperature

Monthly means: the coldest month's mean nightly low -12.8 °C in January (across the grid cells of the range -17.2 °C to -8.4 °C), the warmest month's mean daily high 15.8 °C in July (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is -12.8 °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: 58 to 64% 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.

Climate across the habitat

Habitat months, northern hemisphere

Habitat climate of Androsace chamaejasme through the yearWarmest months July and August, mean daily high 16 °C; coldest month January, mean nightly low -12.8 °C; 1,832 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA. Habitat months, northern hemisphere.-20°-10°0°10°20°30°frost°C · day and nightcold quarter0100200300400mm rainDLI 8–36RH 58–64%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 432 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 °C-4 / -9–0-2 / -6–11 / -3–54 / 0–810 / 5–1413 / 10–1716 / 13–1916 / 12–1912 / 9–168 / 5–121 / -3–5-4 / -8–0
Night °C-13 / -17–-8-12 / -16–-8-8 / -12–-5-5 / -8–-1-1 / -4–43 / 0–76 / 2–106 / 2–102 / -1–6-2 / -5–2-8 / -12–-3-12 / -16–-7
Rain mm118 / 70–169105 / 60–153133 / 78–193121 / 78–174170 / 120–229199 / 134–268219 / 147–306214 / 144–297160 / 114–227128 / 92–176134 / 94–182131 / 80–186
DLI10 / 7–1316 / 12–2024 / 20–2932 / 28–3635 / 32–3836 / 33–3835 / 33–3830 / 28–3324 / 20–2717 / 14–2011 / 8–148 / 5–11
RH %58 / 56–6259 / 57–6261 / 59–6362 / 60–6462 / 61–6564 / 61–6563 / 61–6563 / 61–6564 / 62–6562 / 59–6561 / 59–6560 / 57–64

The daily extremes were not used: the correction for elevation, +1061 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 -31.6 °C, 1st-percentile night -21.0 °C.

How this section is made
Each figure is the median across the 432 grid cells holding the 571 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 864:3766 (46.775, 8.325). 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 432 distinct grid cells holding 571 of the 571 in-range records; extremes and elevation at the typical cell 864:3766 (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 47.00_8.125, lapse-corrected +1061 m at 6.5 °C/km. Elevation: ETOPO 2022, 1999 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.
NativeAustria, Czechoslovakia, Germany, Poland, Switzerland, France, Italy, Romania, Yugoslavia, East European Russia, North European Russia, Morocco, North Caucasus, Transcaucasus · 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 marker46.907, 9.637 · in the densest population, 361 records (48% of those in range)
Kew's description“perennial or subshrub” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 746 georeferenced records inside the native range; the climate across the range on the 571 of them placed to within 10 km; the map shows only the 527 openly licensed ones, which alone would put the marker 63 km away. 406 records outside the WCVP native range not used. 175 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 746 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Androsace chamaejasme, photograph 1did not loadAndrosace chamaejasme, photograph 2did not loadAndrosace chamaejasme, photograph 3did not loadAndrosace chamaejasme, photograph 4did not loadAndrosace chamaejasme, photograph 5did not loadAndrosace chamaejasme, photograph 6did not load

Photographs: Andrea Schieber, CC BY-SA, via GBIF; Milan Chytrý, CC BY, iNaturalist via GBIF; Jonathan, CC BY, iNaturalist via GBIF; arthur_haendler, CC BY, iNaturalist via GBIF (3).

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

Hesperochloa pulchella Poaceae Draba tomentosa Draba tomentosa Brassicaceae Photo: CC BY, hecklemoreEpilobium nutans Epilobium nutans Hornemann's Willowherb Photo: CC0, author not statedCrepis aurea Crepis aurea Golden hawk's-beard Photo: CC BY, EliasCampanula barbata Campanula barbata Bearded bellflower Photo: CC BY, Antoine ThivollePotentilla brauneana Potentilla brauneana Rosaceae Photo: CC0, author not stated

Other Androsace 71 in the reference

Androsace adfinis Androsace adfinis Primulaceae Photo: CC BY, Antoine Thivolle Androsace akbaitalensis Primulaceae Androsace albana Androsace albana Primulaceae Photo: CC BY, Yuri Sofronov Androsace alchemilloides Primulaceae Androsace alpina Androsace alpina Alpine rock-jasmine Photo: CC BY, r Androsace armeniaca Primulaceae Androsace bisulca Androsace bisulca Primulaceae Photo: CC BY, TonyT Androsace brevis Primulaceae Androsace bryomorpha Androsace bryomorpha Primulaceae Photo: CC BY-SA, Philippe.pechoux Androsace caduca Primulaceae Androsace chaixii Androsace chaixii Primulaceae Photo: CC BY-SA, Diego AlexAndrosace ciliata Androsace ciliata Primulaceae Photo: CC BY, Flavien Saboureau all 72 ›

Names & registers

Also known as Androsace chamaejasme var. typica; Primula chamaejasme var. typica. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataiNaturalist

The record

Family
Primulaceae
Described by
Wulfen
Native to
Austria, Czechoslovakia, Germany +11
Wild records
746 in range · 527 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 2026-10-21
GBIF species record gbif.species answeredasked 2026-10-21
GBIF synonyms gbif.synonyms answeredasked 2026-10-21
GBIF common names gbif.vernacular answeredasked 2026-10-21names fetched 2026-10-21
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; 7 records within 1 km of a botanic garden, herbarium or zoo left out (7 at a botanic garden or arboretum; Wikidata's list)
Habitat climate climate answeredasked 2026-10-21
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-21NASA POWER (MERRA-2) daily 1981–2024, cell 47.00_8.125, lapse-corrected +1061 m at 6.5 °C/km; read, and set aside: the correction for elevation, +1061 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 2026-10-21found by its label; its IPNI identifier 700224-1 is Kew's for Androsace chamaejasme Wulfen
Wikipedia wikipedia nothing to reportasked 2026-10-21
iNaturalist photographs, wild inat.photos.wild nothing to reportasked 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 2026-10-21
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 85 datasets via GBIF.org; each carries its own licence.

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