Puccinia glechomatis

Description

The rust fungus Puccinia glechomatis galls the leaves of Ground-ivy affecting the stem, petiole or underside of the leaf veins. The areas become swollen, yellow, brown or black bearing telia, each up to 1 mm across, usually in groups up to 4 mm across.

Identification difficulty
Recording advice

The only rust on Glechoma hederacea is P. glechomatis and it is only ever found in the telial state which appears as a circle of tiny brownish dots usually on the underside of the leaf.

Habitat

Where the host plants occur.

When to see it

When the host species are in leaf, but especially around September.

UK Status

Widespread and fairly frequent in Britain.

VC55 Status

Status in Leicestershire and Rutland not known.

be our species champion

Leicestershire & Rutland Map

MAP KEY:

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

UK Map