Crown Rust - Puccinia coronata


Puccinia coronata is a rust fungus with orange aecia which galls the leaf blade and petioles of Buckthorn and Alder Buckthorn causing them to become twisted and distorted.

Identification difficulty

May be found where Buckthorn and Alder Buckthorn are in leaf.

When to see it

Late spring to early autumn.

UK Status

Widespread and fairly frequent in Britain.

VC55 Status

Thought to be fairly frequent in Leicestershire and Rutland in areas where the host species are present.

be our species champion

Leicestershire & Rutland Map


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

UK Map