Puccinia malvacearum

{{short description|Species of fungus}}

{{Speciesbox

| image = 2008-05-14 Puccinia malvacearum 60215.jpg

| image_caption =

| genus = Puccinia

| species = malvacearum

| authority = Bertero ex Mont. (1852)Bertero ex Mont., in Gay, Hist. fis. y polit. Chile, Bot. 8: 43 (1852)

| synonyms_ref = {{cite web |title=Species Fungorum - GSD Species |url=https://www.speciesfungorum.org/Names/GSDSpecies.asp?RecordID=241623 |website=www.speciesfungorum.org |access-date=20 August 2023}}

| synonyms = Dasyspora malvacearum {{Au|(Bertero ex Mont.) Arthur, Résult. Sci. Congr. Bot. Wien 1905: 346 (1906)}}

Leptopuccinia malvacearum (Bertero ex Mont.) Rostr., Plantepatologi: 268 (1902)

Micropuccinia malvacearum (Bertero ex Mont.) Arthur & H.S.Jacks., Bull. Torrey bot. Club 48: 41 (1921)

Puccinia sidae-rhombifoliae {{Au|Mayor, in Fuhrmann & Mayor, Mém. Soc. Sci. Nat. Neuchâtel 5: 484 (1914)}}

}}

file:2012-11-30 Puccinia malvacearum (Bertero ex Montagne 1852) 287942.jpg 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 (Hollyhock),{{cite journal |last1=O'Donnell |first1=K.L. |last2=Mclaughlin |first2=D.J. |title=Ultrastructure of meiosis in the hollyhock rust fungus, Puccinia malvacearum 1. Prophase I—Prometaphase I. |journal=Protoplasma |date=1981 |volume=108 |issue=3–4 |pages=225–244|doi=10.1007/BF02224421 }} Hibiscus, Lavatera, Malvastrum and Sphaeralcea.

Suggested control measures (in the US), include sanitation (removal or destruction of affected plants or plant portions) or treatment with fungicides.