Corydalis cheilanthifolia

Plate 1 figs. a–h · 8 separate observations

Corydalis cheilanthifolia, photographed by Steven Bodzin — fig. c Steven Bodzin, CC BY 4.0 / obs. 109023323

Corydalis cheilanthifolia, photographed by Piermario Maculan — fig. d Piermario Maculan, CC0 1.0 / obs. 187696569

Corydalis cheilanthifolia, photographed by Zihao Wang — fig. e Zihao Wang, CC BY 4.0 / obs. 170616644

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

The specimen a real sheet, in a real collection

Herbarium: The New York Botanical Garden
Accession: 248514
Filed as: Corydalis cheilanthifolia Hemsl.
Det. by: Unspecified Determiner
Collected: A. Henry
Origin: CN
The sheet: View the digitised specimen (CC BY 4.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. We link to the digitised sheet rather than rehosting it, because the holding institutions do not serve their images to third parties reliably and we are not going to show you a picture we cannot actually deliver. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all sheets never recorded a determiner, which is ordinary.

Native range 2 botanical countries

Native distribution of Corydalis cheilanthifolia, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.

Region	TDWG code	Continent
China North-Central	CHN	ASIA-TEMPERATE
China South-Central	CHC

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 35 in flower of 53 examined

100%

71%

Proportion of examined Corydalis cheilanthifolia in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	0	2	too few examined
Feb	0	0	too few examined
Mar	10	10	100%	72% to 100%
Apr	20	28	71%	53% to 85%
May	4	4	too few examined
Jun	0	2	too few examined
Jul	0	2	too few examined
Aug	1	2	too few examined
Sep	0	0	too few examined
Oct	0	0	too few examined
Nov	0	0	too few examined
Dec	0	3	too few examined

Peak flowering in Mar. Each bar is the share of Corydalis cheilanthifolia observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 35 of 53 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 10 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Where it actually grows measured, from 137 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	-4.9 °C	-3.5 °C	1.9 °C
Warmest month, mean daily high	20.9 °C	28.2 °C	29.9 °C
Annual rainfall	603 mm	1,203 mm	1,286 mm
Rainfall in the driest quarter	102 mm	260 mm	271 mm

It is found where winters bring light frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 137 research-grade observations of Corydalis cheilanthifolia that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 1 synonym

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

Corydalis daucifolia H.Lév. & Vaniot

Sourcesevery claim on this page

World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.