Urocystis ranunculi


Urocystis ranunculi is a smut fungus which affects certain Buttercup (Ranunculus) species causing stems etc. to blister and eventually erupt, exposing a mass of dark spores. It is advisable to check the spores microscopically to confirm the species.

Identification difficulty

Where Ranunculus species are found.

When to see it

Late summer and early autumn.

UK Status

Widespread, and probably fairly frequent in Britain, though not well recorded.

VC55 Status

There are few records from Leicestershire and Rutland, though the species may be under recorded.

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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