Plate 1 figs. a–h
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.
Confused withby our own model
These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.
Flowering n = 9,714 observations
Peak flowering in May, from 9,714 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.
Also published as 24 synonyms
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.
- Chelidonium cavaleriei H.Lév.
- Chelidonium dahuricum DC.
- Chelidonium grandiflorum (DC.) DC.
- Chelidonium haematodes Moench
- Chelidonium laciniatum Mill.
- Chelidonium laciniatum var. fumariifolium DC.
- Chelidonium luteum Gilib.
- Chelidonium majus f. laciniatum Schube
- Chelidonium majus f. majus
- Chelidonium majus f. quercifolium (Willemet) Fast
- Chelidonium majus subsp. laciniatum (Mill.) Domin
- Chelidonium majus var. fumariifolium (DC.) K.Koch
- Chelidonium majus var. grandiflorum DC.
- Chelidonium majus var. laciniatum Roth
- Chelidonium majus var. laciniatum (Mill.) Lam. & DC.
- Chelidonium majus var. pleniflorum Lawalrée
- Chelidonium majus var. plenum Latourr.
- Chelidonium majus var. tenuifolium Retz.
- Chelidonium majus var. tenuifolium Lilj.
- Chelidonium murale P.Renault
- Chelidonium olidum Tarscher. ex Ott
- Chelidonium quercifolium Willemet
- Chelidonium ruderale Salisb.
- Chelidonium umbelliferum Stokes
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.
We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.