Puccinia malvacearum

file:2012-11-30 Puccinia malvacearum 287942.jpg|thumb|right|Puccinia malvacearum on Pelargonium geranium
Puccinia malvacearum, also known as hollyhock or mallow rust, is a fungal species within the genus Puccinia known for attacking members of the family Malvaceae. An autoecious pathogen, it can complete its life cycle using a single host.
It was originally found on the leaves of a species of Malva in Chile.
Other plants also affected by the rust include Abutilon, Alcea, Hibiscus, Lavatera, Malvastrum and Sphaeralcea.
Suggested control measures, include sanitation or treatment with fungicides.