Peronospora farinosa


Peronospora farinosa can cause yellowish swellings on the leaf blade of the host plants (Amaranthaceae sp. such as Fat-hen and Oraches) often affecting several leaves of the same plant. The affected leaves can become swollen and slightly distorted. This downy mildew can also have a purplish tinge.

Identification difficulty
Recording advice

Good photographs required. Please state the host plant.


Wherever the host plants occur.

When to see it

When the host plants are in leaf.

UK Status

Fairly widespread, particularly in the southern half of Britain.

VC55 Status

Rare or under recorded in Leicestershire and Rutland.

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