Synonymy:
Alphitomorpha communis var. polygonacearum Wallr., Verh. Ges. nat. Freunde Berlin 1(1): 31 (1819)
Erysiphe communis var. polygoni (DC.) Westend., Ann. soc. sci. méd. nat. Brux.: 72 (1839) [1838]
Microsphaera polygoni (DC.) Sawada, Spec. Report Agric. Exp. Station Formosa 9: 52 (1914)
Ischnochaeta polygoni (DC.) Sawada, Special Publication College of Agriculture, National Taiwan University 8: 19 (1959)

Position in classification:
Erysiphe, Erysiphaceae, Helotiales, Leotiomycetidae, Leotiomycetes, Ascomycota, Fungi

Note:
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