Melampsora caprearum

A rust fungus which affects the leaves of various willow species. Very distinctive bright yellowish orange species.

Found wherever the host tree willow grows.

Common and widespread throughout Britain. Native.

Class Pucciniomycetes
Order Pucciniales
Family Melampsoraceae
Species Melampsora caprearum Thüm.

Photos: On Goat Willow (Salix caprea), back garden, South Staffordshire. 15th June 2021. © Peter Hillman