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Corydalis sewerzowii; photograph Margarita, CC BY, iNaturalist via GBIF CC BYMargarita, CC BY, iNaturalist via GBIF

Corydalis sewerzowii Regel

Papaveraceae · Kazakhstan, Kirgizistan +2

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Corydalis sewerzowii, photograph Natalya Ivanova, CC BY, iNaturalist via GBIFCorydalis sewerzowii, photograph Margarita, CC BY, iNaturalist via GBIFCorydalis sewerzowii, photograph Maxim Shashkov, CC BY, iNaturalist via GBIFCorydalis sewerzowii, photograph Maxim Shashkov, CC BY, iNaturalist via GBIFCorydalis sewerzowii, photograph Maxim Shashkov, CC BY, iNaturalist via GBIFCorydalis sewerzowii, photograph Alexander Dubynin, CC BY, iNaturalist via GBIF 23 photographs ›
Habitat figures
Cold floor (1 night in 100)
-16.3°C
Record low -27.6 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
31°C
Jul at the habitat CHELSA
Rain a year (median across the range)
398mm
7 months of 25 mm or more in the median year CHELSA
Open-sky light
11–47DLI
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 winters: the rain comes November to April, with nights below freezing; no growing season read. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

About the genus · Corydalis

Corydalis is a genus of about 540 species of annual and perennial herbaceous plants in the family Papaveraceae, native to the temperate Northern Hemisphere and the high mountains of tropical eastern Africa. They are most diverse in China and the Himalayas, with at least 357 species in China. Corydalis species are the only dicots having only a single cotyledon.

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

Cultivation

Seasons

The rain rule reads a rainy season and no growing season: 70% of the median year's rain (307 mm of 404 mm) falls in November to April, the cooler part of the year, but the mean nightly low is below freezing in February, March, April, December and January, so the rule reads no growing season from it. Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: May to October.

Rain

404 mm in the median year at the habitat, 307 mm of it November to April. Wettest month March at 60 mm, driest month August at 5 mm. Across the grid cells of the range the year's total runs 280 mm to 708 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 398 mm, is the year's rain at the top of the page; the 404 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: 11 to 47 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 10, the highest 90th-percentile month 50).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is -16.3 °C, the absolute minimum -27.6 °C, 5,352 frost nights in 44 years, 121.6 a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 35.3 °C. Monthly means: the coldest month's mean nightly low -7.8 °C in January (across the grid cells of the range -9.4 °C to -3.5 °C), the warmest month's mean daily high 30.5 °C in July (median year across the grid cells of the range, CHELSA). Cold floor: -16.3 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).

Humidity

Relative humidity at the habitat: 42 to 59% 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. NASA POWER daily minima and maxima over 44 years at a typical spot in the range, lapse-corrected -530 m to its elevation; CHELSA monthly means, median year across the grid cells of the range. The cold floor is the 1st-percentile night named in its sentence. 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 Corydalis sewerzowii through the yearWarmest month July, mean daily high 31 °C; coldest month January, mean nightly low -7.8 °C; 404 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA; the extremes at the edge from NASA POWER. Habitat months, northern hemisphere.-40°-20°0°20°40°frost35.3° 99th-percentile day, NASA POWER-27.6° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0255075100mm rainDLI 11–47RH 42–59%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 52 habitat cells, CHELSA cold quarter: the three months around the coldest month's mean nightly low extremes over 44 years at a typical spot in the range, from NASA POWER, marked at the edge, in no month DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C1 / -3–53 / -1–89 / 5–1316 / 13–2123 / 19–2629 / 24–3131 / 26–3429 / 26–3224 / 20–2716 / 13–209 / 6–143 / 0–8
Night °C-8 / -9–-4-7 / -9–-2-2 / -4–25 / 2–811 / 7–1316 / 13–1818 / 15–2016 / 14–1911 / 8–145 / 3–7-1 / -3–3-6 / -8–-1
Rain mm48 / 32–6755 / 37–7860 / 42–8954 / 42–9339 / 28–7613 / 6–3012 / 3–215 / 1–117 / 3–1721 / 11–4740 / 30–7050 / 33–75
DLI13 / 12–1519 / 18–2126 / 25–2835 / 34–3743 / 41–4447 / 46–4947 / 46–5044 / 42–4535 / 33–3723 / 21–2614 / 13–1711 / 10–13
RH %58 / 55–6159 / 56–6158 / 55–6054 / 52–5650 / 46–5444 / 40–4843 / 39–4842 / 39–4744 / 42–5050 / 47–5355 / 52–5857 / 54–60
How this section is made
Each figure is the median across the 52 grid cells holding the 63 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 949:5012 (42.525, 70.625). Over 44 years there: absolute minimum -27.6 °C, 1st-percentile night -16.3 °C, 99th-percentile day 35.3 °C. 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 52 distinct grid cells holding 63 of the 63 in-range records; extremes and elevation at the typical cell 949:5012 (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 42.50_70.625, lapse-corrected -530 m at 6.5 °C/km. Elevation: ETOPO 2022, 1152 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.
NativeKazakhstan, Kirgizistan, Tadzhikistan, Uzbekistan · 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 marker43.509, 68.653 · in the densest population, 41 records (54% of those in range)
Kew's description“tuberous geophyte” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 76 georeferenced records inside the native range; the climate across the range on the 63 of them placed to within 10 km; the map shows only the 28 openly licensed ones, which alone would put the marker 16 km away. 13 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 76 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Corydalis sewerzowii, photograph 1did not loadCorydalis sewerzowii, photograph 2did not loadCorydalis sewerzowii, photograph 3did not loadCorydalis sewerzowii, photograph 4did not loadCorydalis sewerzowii, photograph 5did not loadCorydalis sewerzowii, photograph 6did not load

Photographs: Natalya Ivanova, CC BY, iNaturalist via GBIF; Margarita, CC BY, iNaturalist via GBIF; Maxim Shashkov, CC BY, iNaturalist via GBIF (3); Alexander Dubynin, CC BY, iNaturalist via GBIF.

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

Ixiolirion tataricum Ixiolirion tataricum Ixioliriaceae Photo: CC BY, Ioannis MagourasRoemeria refracta Roemeria refracta Asian corn-poppy Photo: CC BY, Orzigul AnvarovaPhlomoides isochila Phlomoides isochila Lamiaceae Photo: CC BY, Alexander DubyninCrambe orientalis Crambe orientalis Oriental sea-kale Photo: CC BY, Dr. Alexey YakovlevTulipa turkestanica Tulipa turkestanica Liliaceae Photo: CC BY, jeanjacquesgodonEranthis longistipitata Eranthis longistipitata Ranunculaceae Photo: CC BY, Morten Ross

Other Corydalis 90 in the reference

Corydalis adunca Corydalis adunca Papaveraceae Photo: CC BY, Wang.QG Corydalis afghanica Papaveraceae Corydalis aitchisonii Papaveraceae Corydalis ambigua Corydalis ambigua Small corydalis Photo: CC BY, Pavel SmirnovCorydalis angustifolia Corydalis angustifolia Papaveraceae Photo: CC BY, Denis IbaevCorydalis aurea Corydalis aurea Golden corydalis Photo: CC BY, Matt BergerCorydalis balansae Corydalis balansae Papaveraceae Photo: CC0, author not statedCorydalis benecincta Corydalis benecincta Papaveraceae Photo: CC BY, Morten Ross Corydalis blanda Papaveraceae Corydalis bracteata Corydalis bracteata Large-bracted corydalis Photo: CC BY, Marina E.Corydalis bungeana Corydalis bungeana Bunge’s corydalis Photo: CC BY, Jane CharlenCorydalis buschii Corydalis buschii Busch's corydalis Photo: CC BY, Andrew Bazdyrev all 91 ›

Names & registers

Also known as Capnoides sewerzowii; Capnoides simplicifolium; Corydalis sewerzovii var. simplicifolia; Corydalis simplicifolia; Corydalis suworowii and 2 more. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidata

The record

Family
Papaveraceae
Described by
Regel
Native to
Kazakhstan, Kirgizistan, Tadzhikistan +1
Wild records
76 in range · 28 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
Habitat climate climate answeredasked 2026-10-21
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-21NASA POWER (MERRA-2) daily 1981–2024, cell 42.50_70.625, lapse-corrected -530 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-21
Wikipedia wikipedia nothing to reportasked 2026-10-21
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 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 8 datasets via GBIF.org; each carries its own licence.

Cultifolio

Opening your plants…