Species
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Corydalis solida (L.) Clairv.

Bird-In-A-Bush, Purple Corydalis, Spring fumewort, bird-in-a-bush

Climate known 67 photographs
Add one to my plants Sow seed

Every figure on this page is derived from public data by a stated rule and says its source; nothing here is written by a person or a model, except the Wikipedia passage, which is quoted and marked as such. How it is made.

Summary

Corydalis solida, fumewort or bird-in-a-bush, is a species of flowering plant in the family Papaveraceae, native to moist, shady habitats in northern Europe and Asia. Growing to 25 cm (10 in), it is a spring ephemeral, with foliage that appears in spring and dies down to its tuberous rootstock in summer. It is cultivated for its deeply divided, ferny leaves and narrow, long-spurred flowers which appear in spring. The flowers show color variation, and may be mauve, purple, red, or white.

Text from Wikipedia, “Corydalis solida”, CC BY-SA 4.0, quoted as written. Kept separate from everything derived here.

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.

Text from Wikipedia, “Corydalis”, CC BY-SA 4.0, quoted as written.

Family
Papaveraceae
Described by
(L.) Clairv.
Native to
Finland, Sweden, Austria +30
Wild records
1555 in range· 833 open

At a glance

Warmest month
22°C
Jul, mean day; nights 14 °C (CHELSA)
Rain
805mm/yr
12 wet months · peak Jul 78 mm (CHELSA)
Light
4–35DLI
mol/m²/day, winter to summer, open sky (CHELSA shortwave)
In short condensed by rule from the cultivation cards · not written by a person
Rain rule: no season, 70% of the rain takes 8 months (May to December in the northern hemisphere). Habitat rain 805 mm a year, wettest July at 78 mm, driest April at 46 mm (habitat calendar, northern hemisphere). Open sky over the habitat: 4 to 35 mol/m²/day. Cold floor -12.7 °C (1st-percentile habitat night, NASA POWER).
Each sentence is one card's own one-line form, written by the same rule as the card (Its year, Rain, Light, Temperature); the note cannot say what a card does not. Months are given for the northern hemisphere (set your site in Settings to change this), and the habitat's own alongside. The cards · the figures.

Also known as Bulbocapnos solidus (L.) Trinajstić; Corydalis bulbosa var. solida L.; Corydalis digitata Gray, 1821; Corydalis halleri subsp. subremota Popov; Corydalis solida Sw., 1819 and 3 more.

Cultivation

Its year Rain rule: no season, 70% of the rain takes 8 months (May to December in the northern hemisphere).

This species’ habitat figures, and what two fixed rules read from them.

The rain rule reads no season: 70% of the year's rain (585 mm of 805 mm) takes 8 months, May to December. Mean temperature moves 17.8 °C between the warmest and coldest month. Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: November to June.

Read from the median year of CHELSA monthly rainfall and mean temperature across the envelope cells: 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 gives a season to reverse. A reading of the curves, not an observation of the plant.

Rain Habitat rain 805 mm a year, wettest July at 78 mm, driest April at 46 mm (habitat calendar, northern hemisphere).

This species’ habitat figures, with their source.

805 mm a year at the habitat, 585 mm of it May to December. Wettest month July at 78 mm, driest April at 46 mm. Across the envelope cells the year's total runs 590 mm to 1207 mm (10th to 90th percentile of each cell's own year) (median year across the envelope cells, CHELSA; habitat calendar, northern hemisphere).

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

Light Open sky over the habitat: 4 to 35 mol/m²/day.

This species’ habitat figures, with their source.

Open sky over the habitat: 4 to 35 mol/m²/day across the year (daily light integral, median year across the envelope cells, CHELSA; the lowest 10th-percentile month across the cells is 2, the highest 90th-percentile month 39).

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.

Warmth and air Cold floor -12.7 °C (1st-percentile habitat night, NASA POWER).

This species’ habitat figures, with their source.

Temperature

Coldest: the 1st-percentile night over 44 years at the typical cell is -12.7 °C, the absolute minimum -21.5 °C, about 110 frost nights a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 27.8 °C. Monthly means: coldest night -2.4 °C in January (across the envelope cells -10.2 °C to 1.0 °C), warmest day 22.3 °C in July (median year across the envelope cells, CHELSA). Cold floor: -12.7 °C, which is the 1st-percentile night over 44 years at the typical cell (NASA POWER).

NASA POWER daily minima and maxima 1981–2024 at the typical cell, lapse-corrected to its elevation; CHELSA monthly means, median year across the envelope cells, CHELSA. The cold floor is the figure named in its sentence. Not a measured survival limit for any plant in a pot.

Humidity

Relative humidity at the habitat: 59 to 69% across the year (monthly means, median year across the envelope cells, CHELSA). A figure about the air, saying nothing about how the plant takes water.

CHELSA relative humidity, median year across the envelope cells.

The figures the cards read from are in Climate below, and where they came from in Natural habitat.

Climate across the habitat

Habitat climate through the yearMean day from 3 °C in Jan to 22 °C in Jul; mean night from -2 °C in Jan to 14 °C in Jul. The cold quarter, Dec to Feb, is the three months around the coldest night. 805 mm of rain a year, most in Jul. The bands show the 10th to 90th percentile across 1377 habitat cells. Over 44 years at the typical cell the absolute minimum was -21.5 °C and the 99th-percentile day 27.8 °C; neither is dated to a month. Beneath: daily light integral and relative humidity through the year, each on its own scale.-30°-20°-10°10°20°30°frost27.8° 99th-percentile day (undated)-21.5° lowest night in 44 yrs (undated)°C · day and nightcold quarter0255075100125mm rainDLI 4–35RH 59–69 %JanFebMarAprMayJunJulAugSepOctNovDec
day night rain 10th–90th percentile across 1377 habitat cells cold quarter: the three months around the coldest night extremes over 44 years at the typical cell, marked at the edge: undated DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C3 / -5–64 / -5–78 / 0–1112 / 8–1417 / 13–1920 / 17–2222 / 20–2522 / 19–2418 / 14–2013 / 8–157 / 0–104 / -4–7
Night °C-2 / -10–1-2 / -11–10 / -6–34 / -0–58 / 5–1011 / 9–1314 / 12–1514 / 12–1510 / 8–126 / 3–92 / -4–5-1 / -9–2
Rain mm63 / 38–10152 / 32–8059 / 33–8946 / 33–10066 / 42–11975 / 59–10678 / 59–10076 / 56–10070 / 53–11176 / 47–12172 / 47–11372 / 45–115
DLI5 / 3–910 / 7–1518 / 15–2328 / 25–3134 / 32–3635 / 33–3935 / 32–3929 / 26–3419 / 16–2612 / 8–166 / 3–104 / 2–8
RH %68 / 64–7366 / 62–7063 / 60–6560 / 57–6259 / 56–6259 / 57–6259 / 57–6260 / 57–6262 / 60–6465 / 62–6768 / 65–7069 / 65–72

Each figure is the median across the 1377 grid cells holding the 1523 in-range records, with the 10th–90th percentile span across those cells after the slash where it differs. Extremes and elevation were read at the typical cell 790:3720 (50.475, 6.025). Over 44 years there: absolute minimum -21.5 °C, 1st-percentile night -12.7 °C, 99th-percentile day 27.8 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Envelope: median and 10th–90th percentile of each month across the 1377 distinct grid cells holding the 1523 in-range records; extremes and elevation at the typical cell 790:3720 (its coldest month's mean night nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell 50.50_6.250, lapse-corrected +133 m at 6.5 °C/km. Elevation: ETOPO 2022, 556 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 every in-range record's cell, not at the marker.
Openly licensed records inside the range, framed on where they fall.
NativeFinland, Sweden, Austria, Belgium, Czechoslovakia, Germany, Hungary, Netherlands, Poland, Switzerland, France, Sardegna, Spain, Albania, Bulgaria, Greece, Italy, Romania, Turkey-in-Europe, Yugoslavia, Belarus, Baltic States, Central European Russia, East European Russia, North European Russia, South European Russia, Northwest European Russia, Ukraine, Algeria, West Siberia, Kazakhstan, Tadzhikistan, Uzbekistan· introduced: Denmark, Great Britain, Norway, New York, Vermont
Kew's description“tuberous geophyte” · “temperate”· quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Map marker51.953, 5.613 · in the densest population, 249 records (16% of those in range)
Evidence usedThe map marker and the climate envelope rest on all 1555 georeferenced records inside the native range; the map shows only the 833 openly licensed ones, which alone would put the marker 761 km away. 67 records outside the range (gardens, roadsides, misidentifications) ignored. 32 in-range records are placed to worse than 10 km and stay on the map but off the climate.
The map markerthe map marker: the openly licensed record nearest the middle of the densest 1° population of the 1555 in-range records; it decides nothing.

Photographs

Corydalis solidaCorydalis solidaCorydalis solidaCorydalis solidaCorydalis solidaCorydalis solidaCorydalis solidaCorydalis solida

Photographs: no rights reserved · CC0 (3); (c) Anastasia Titovets, some rights reserved (CC BY) (3); (c) Анна, some rights reserved (CC BY) (2).

Photographs: iNaturalist and Wikimedia Commons did not answer when this page was built; what is shown came from the sources that did.

Papers naming this species

Works whose title or abstract names Corydalis solida, most cited first, from OpenAlex (CC0). A mention, not a cultivation source: nothing on this page is drawn from them.

Determinants of distribution and abundance in the clouded apollo butterfly: a landscape ecological approach
Miska Luoto, Mikko Kuussaari, Hannu Rita, Jere Salminen (2001) · Ecography
Early Spring Nectar and Pollen and Insect Visitor Behavior in Two Corydalis Species (Papaveraceae)
Bożena Denisow, Monika Strzałkowska-Abramek, Małgorzata Bożek, Anna Jeżak (2014) · Journal of Apicultural Science
The biosynthesis of protoberberine and related isoquinoline alkaloids
Herbert L. Holland, Peter W. Jeffs, Thomas M. Capps, David B. MacLean (1979) · Canadian Journal of Chemistry
Phytochemical Composition and Antimicrobial Activity of Corydalis solida and Pseudofumaria lutea
Sylwia Zielińska, Magdalena Dziągwa-Becker, Ewelina Piątczak, A. Jezierska-Domaradzka (2020) · Molecules
Adatok Magyarország flórájához és vegetációjához III.
László Erdős, Eszter Aradi, Zoltán Bátori, Csaba Tölgyesi (2018) · Kitaibelia
Pollination biology of the urban populations of an ancient forest, spring ephemeral plant
Maciej Ziemiański, Marcin Zych (2016) · Acta Societatis Botanicorum Poloniae
THE ALKALOIDS OF FUMARIACEOUS PLANTS: LI. CORYDALIS SOLIDA (L.) SWARTZ
Richard H. F. Manske (1956) · Canadian Journal of Chemistry
The historical ecology approach in species conservation–Identifying suitable habitat management for the endangered clouded Apollo butterfly (Parnassius mnemosyne L.) in Sweden
Anna Westin, Tommy Lennartsson, Jan-Olov Björklund, <sup>2</sup> Consultant butterfly expert, Västernäs 1, Herräng, Sweden (2018) · AIMS environmental science
The Crystal and Molecular Structure of Two Drug Compounds: Tazettine and Corydaldine
Semra İde, Bilge Şener, H. Temizer, Sakine Könükol (1996) · Crystal Research and Technology

Similar habitat climate the 6 species whose habitat climate is nearest this one's: mean day and night, month by month, and rain on a log scale, in calendar order, so a habitat with the same seasons six months out is far, not near. Nothing else counts: not range, not family.

History & registers

Where this page came from built 2026-09-20 · dossier v2 · node
gbif.species answeredcarried from build of 2026-09-20 (offline re-derivation; the backbone was not asked)
gbif.synonyms answeredcarried from build of 2026-09-20 (offline re-derivation; the backbone was not asked)
gbif.vernacular answeredcarried from build of 2026-09-20 (offline re-derivation; the backbone was not asked)
wcvp.distribution answered
gbif.occurrences answeredGBIF occurrence download https://doi.org/10.15468/dl.3h4zam
climate answered
wikidata answeredcarried from build of 2026-09-20 (rederive); that build: carried from build of 2026-09-19 (rederive); that build: carried from build of 2026-09-19 (rederive)
wikipedia answeredcarried from build of 2026-09-20; this build: skipped
inat.taxon not askedcarried from build of 2026-09-20 (rederive)
inat.photos.wild answeredcarried from build of 2026-09-20; this build: skipped
inat.photos.cultivated nothing to reportcarried from build of 2026-09-20 (rederive); that build: carried from build of 2026-09-19 (rederive); that build: carried from build of 2026-09-19 (rederive)
commons not askedcarried from build of 2026-09-20 (rederive); that build: carried from build of 2026-09-19 (rederive); that build: carried from build of 2026-09-19 (rederive)
gbif.media answered
openalex answeredcarried from build of 2026-09-20; this build: skipped

Every upstream is recorded as having answered, reported nothing, or refused. Only “nothing to report” is ever shown as an absence. Records came from 166 datasets via GBIF.org; each carries its own licence.