Box Rust - Puccinia buxi


This dark brown rust (Only telia formed) seems to be confined to older Box plants, not affecting younger ones. The rust galls the underside of leaves, and a corresponding bulge may occur on the upper surface. 

Identification difficulty
Recording advice

Unless identified by a recognised expert, a photo is required. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters you have observed.


Where mature Box (Buxaceae) plants occur.

When to see it

Most months of the year.

Life History

It is monophagous on Box (Buxaceae), there is no hostplant alternation.

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