![Kingcups (Caltha palustris) and pasque-flower (Pulsatilla vulgaris): entire flowering plants. Coloured etching by C. Pierre, c. 1865, after P. Naudin. | Wellcome Collection Kingcups (Caltha palustris) and pasque-flower (Pulsatilla vulgaris): entire flowering plants. Coloured etching by C. Pierre, c. 1865, after P. Naudin. | Wellcome Collection](https://iiif.wellcomecollection.org/image/V0044122EL/full/full/0/default.jpg)
Kingcups (Caltha palustris) and pasque-flower (Pulsatilla vulgaris): entire flowering plants. Coloured etching by C. Pierre, c. 1865, after P. Naudin. | Wellcome Collection
![CPRE Hertfordshire on Twitter: "Marsh marigolds are flowering now in shallow water and marshy places. Also known as king cups, they are usually in flower from March to May. Find more spring CPRE Hertfordshire on Twitter: "Marsh marigolds are flowering now in shallow water and marshy places. Also known as king cups, they are usually in flower from March to May. Find more spring](https://pbs.twimg.com/media/FQFg8uRXIAMsN58.jpg:large)
CPRE Hertfordshire on Twitter: "Marsh marigolds are flowering now in shallow water and marshy places. Also known as king cups, they are usually in flower from March to May. Find more spring
![Flowering Kingcups or Marsh Marigolds (Caltha palustris), Stock Photo, Picture And Royalty Free Image. Pic. IBK-811711 | agefotostock Flowering Kingcups or Marsh Marigolds (Caltha palustris), Stock Photo, Picture And Royalty Free Image. Pic. IBK-811711 | agefotostock](https://t1.thpservices.com/previewimage/gallil/0fd35b87506925752915cb4ae47848c7/ibk-811711.jpg)
Flowering Kingcups or Marsh Marigolds (Caltha palustris), Stock Photo, Picture And Royalty Free Image. Pic. IBK-811711 | agefotostock
![A plant (Caltha radicans) related to kingcups: flowering stem and floral segments. Coloured engraving after J. Sowerby, 1810. | Wellcome Collection A plant (Caltha radicans) related to kingcups: flowering stem and floral segments. Coloured engraving after J. Sowerby, 1810. | Wellcome Collection](https://iiif.wellcomecollection.org/image/V0044223EL/full/full/0/default.jpg)
A plant (Caltha radicans) related to kingcups: flowering stem and floral segments. Coloured engraving after J. Sowerby, 1810. | Wellcome Collection
![Caltha Palustris - Marsh-marigold Or Kingcup Yellow Flower, Perennial Herbaceous Plant Of The Buttercup Family Stock Photo, Picture And Royalty Free Image. Image 144384364. Caltha Palustris - Marsh-marigold Or Kingcup Yellow Flower, Perennial Herbaceous Plant Of The Buttercup Family Stock Photo, Picture And Royalty Free Image. Image 144384364.](https://previews.123rf.com/images/rognar/rognar2003/rognar200300094/144384364-caltha-palustris-marsh-marigold-or-kingcup-yellow-flower-perennial-herbaceous-plant-of-the.jpg)