Clockwise from top left
Caltha polypetala
Caltha palustris ‘Bronze Age’
Catha palustris ‘Multiplex’
Caltha palustris ‘Bronze Age’
Caltha palustris ‘Multiplex’
Caltha palustris var. polypetala
Caltha – Botanical Style Photographs of Kingcups
About the Author: Martin Preston
