Peronospora trifoliorum
- kingdom: Chromista
- phylum: Oomycota
- class: Peronosporea
- order: Peronosporales
- family: Peronosporaceae
- genus: Peronospora
- species: Peronospora trifoliorum
Ushuaia
Tierra del Fuego
ArgentinaHelsinki
Hollola
Lappeenranta
Sibbo
Central FinlandSaarijärvi
Ostrobothnia
FinlandBayreuth
Königstein
BavariaHaiger
Hesse
GermanyColorado City
ArizonaGolden
ColoradoAmes
IowaAmherst Center
MassachusettsMinneapolis
MinnesotaLivingston
MontanaCayuga Heights
East Ithaca
Ithaca
South Hill
New YorkWolf Creek
UtahMadison
WisconsinLaramie
Wyoming
United States