''Physoderma alfalfae'' is a species of

fungus A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from th ...

in the family Physodermataceae. A plant pathogen, it causes crown wart of

alfalfa Alfalfa () (''Medicago sativa''), also called lucerne, is a perennial flowering plant in the legume family Fabaceae. It is cultivated as an important forage crop in many countries around the world. It is used for grazing, hay, and silage, as w ...

References

Fungal plant pathogens and diseases Fungi described in 1895 Blastocladiomycota {{fungus-plant-disease-stub