''Pustula tragopogonis'', the goatsbeard white rust, is an

oomycete The Oomycetes (), or Oomycota, form a distinct phylogenetic lineage of fungus-like eukaryotic microorganisms within the Stramenopiles. They are filamentous and heterotrophic, and can reproduce both sexually and asexually. Sexual reproduction o ...

plant pathogen Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like orga ...

unrelated to

fungal A fungus (: fungi , , , or ; 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 one of the tradit ...

organisms. ''Albugo tragopogonis'' is the old name for ''Pustula tragopogonis'', the causal agent of white blister disease on goatsbeard (''Tragopogon'' spp.).

References

Water mould plant pathogens and diseases Albuginaceae {{plant-disease-stub