Podosphaera physocarpi
Member of
ninebark galls
genus Podosphaera
powdery mildews (family Erysiphaceae)
higher ascomycetes (subphylum Pezizomycotina)
ascomycete fungi (phylum Ascomycota)
fungi including lichens (kingdom Fungi)
galls
Chris’s observations: none
Taxon info: iNaturalist
Bay Area species: iNaturalist