De vegetatieve vermenigvuldiging en verspreiding van Caltha palustris L. in de Biesbosch

In the tidal fresh water area of the Biesbosch propagation and dispersal of Callha palustris L. is largely effected by drifting spider-like young plants consisting of a solid centre and a number of thickened roots. These plants originate from the rooting nodes of fallen erect stems which decay in the mud, an unusual manner of vegetative propagation.