Bitter Chocolate Rust - Uromyces ficariae


A rust fungus affecting Lesser Celandine (Ficaria verna). The rust is often a dark chocolate brown, particularly on the underside of the leaves, giving rise to the common name.

Identification difficulty

May be encountered wherever Lesser Celandine (Ficaria verna) is present.

When to see it

Spring and early summer.

UK Status

Widespread and fairly frequent in Britain.

VC55 Status

Status in Leicestershire and Rutland not known.

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map