Summary description from Wikipedia:

Erysiphe polygoni in languages:

Dutch

Duizendknoopmeeldauw

Finnish

pihatattarenhärmä

Images from inaturalist.org observations:

We recommend you sign up for this excellent, free service.

©Nicolas Schwab, some rights reserved (CC-BY-NC)

©Eric C. Maxwell, some rights reserved (CC-BY-NC)

©Eric C. Maxwell, some rights reserved (CC-BY-NC)

©Eric C. Maxwell, some rights reserved (CC-BY-NC)

©Sequoia Janirella Wrens, some rights reserved (CC-BY-NC)

©veridianforest, some rights reserved (CC-BY-NC)

©Chase G. Mayers, some rights reserved (CC-BY)

©Chase G. Mayers, some rights reserved (CC-BY)

©Chase G. Mayers, some rights reserved (CC-BY)

©Karl Feng, some rights reserved (CC-BY-NC)

©DW, some rights reserved (CC-BY-NC)

©Nicolas Schwab, some rights reserved (CC-BY-NC)

©Nicolas Schwab, some rights reserved (CC-BY-NC)

©Sequoia Janirella Wrens, some rights reserved (CC-BY-NC)

©Charcos Companhia, some rights reserved (CC-BY-NC)

©Charcos Companhia, some rights reserved (CC-BY-NC)

©Charcos Companhia, some rights reserved (CC-BY-NC)

©Charcos Companhia, some rights reserved (CC-BY-NC)

©Charcos Companhia, some rights reserved (CC-BY-NC)

©Charcos Companhia, some rights reserved (CC-BY-NC)

©Charcos Companhia, some rights reserved (CC-BY-NC)

©Chloe and Trevor Van Loon, some rights reserved (CC-BY)

©Chloe and Trevor Van Loon, some rights reserved (CC-BY)

©Chloe and Trevor Van Loon, some rights reserved (CC-BY)

©Chloe and Trevor Van Loon, some rights reserved (CC-BY)

©Marco Schmidt, some rights reserved (CC-BY-NC-SA)

©Pavel Šinkyřík, some rights reserved (CC-BY-NC)

©Pavel Šinkyřík, some rights reserved (CC-BY-NC)

©Pavel Šinkyřík, some rights reserved (CC-BY-NC)

©Pavel Šinkyřík, some rights reserved (CC-BY-NC)

©Pavel Šinkyřík, some rights reserved (CC-BY-NC)

©Pavel Šinkyřík, some rights reserved (CC-BY-NC)

©Alexis, some rights reserved (CC-BY)

©Tiffany Theden, some rights reserved (CC-BY-NC)

©Tiffany Theden, some rights reserved (CC-BY-NC)

©Cole Gaerber, some rights reserved (CC-BY-NC)

©Tiffany Theden, some rights reserved (CC-BY-NC)

©Tiffany Theden, some rights reserved (CC-BY-NC)

©Tiffany Theden, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©robichauds, some rights reserved (CC-BY-NC)

©robichauds, some rights reserved (CC-BY-NC)

©robichauds, some rights reserved (CC-BY-NC)

©lenaquist, some rights reserved (CC-BY-NC)

©lenaquist, some rights reserved (CC-BY-NC)

©Tiffany Theden, some rights reserved (CC-BY-NC)

©Alexis, some rights reserved (CC-BY)

©Alexis, some rights reserved (CC-BY)

©Jared Shorma, some rights reserved (CC-BY)

©Jared Shorma, some rights reserved (CC-BY)

©stjayaaa, some rights reserved (CC-BY-NC)

©stjayaaa, some rights reserved (CC-BY-NC)

©stjayaaa, some rights reserved (CC-BY-NC)

©mcroteau, some rights reserved (CC-BY-NC)

©Pedro Hafermann, some rights reserved (CC0)

©Pedro Hafermann, some rights reserved (CC0)

©Pedro Hafermann, some rights reserved (CC0)

©Eric C. Maxwell, some rights reserved (CC-BY-NC)

©mcarni, some rights reserved (CC-BY-NC)

©human_landfill, some rights reserved (CC-BY-NC)

©human_landfill, some rights reserved (CC-BY-NC)

©human_landfill, some rights reserved (CC-BY-NC)

©human_landfill, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©veridianforest, some rights reserved (CC-BY-NC)

©a-ares-barquero, some rights reserved (CC-BY-NC)

©amiller16, some rights reserved (CC-BY-NC)

©vdarlene, some rights reserved (CC-BY-NC)

©Sequoia Janirella Wrens, some rights reserved (CC-BY-NC)

©Supakorn Likitsomboon, some rights reserved (CC-BY-NC)

©Sequoia Janirella Wrens, some rights reserved (CC-BY-NC)

©DW, some rights reserved (CC-BY-NC)

©DW, some rights reserved (CC-BY-NC)

©DW, some rights reserved (CC-BY-NC)

©DW, some rights reserved (CC-BY-NC)

©DW, some rights reserved (CC-BY-NC)

©Karl Feng, some rights reserved (CC-BY-NC)

©Nicolas Schwab, some rights reserved (CC-BY-NC)

©Nicolas Schwab, some rights reserved (CC-BY-NC)

©Cat Chang, some rights reserved (CC-BY-NC)

©Corey Burt, some rights reserved (CC-BY-NC)

©Corey Burt, some rights reserved (CC-BY-NC)

©Corey Burt, some rights reserved (CC-BY-NC)

©Cat Chang, some rights reserved (CC-BY-NC)

©Django Grootmyers, some rights reserved (CC-BY-SA)

©ruslan, some rights reserved (CC-BY-NC)

©ruslan, some rights reserved (CC-BY-NC)

©Rob Westerduijn, some rights reserved (CC-BY-NC)

©Rob Westerduijn, some rights reserved (CC-BY-NC)

©Rob Westerduijn, some rights reserved (CC-BY-NC)

©Susan J. Hewitt, some rights reserved (CC-BY-NC)

©Susan J. Hewitt, some rights reserved (CC-BY-NC)

©Susan J. Hewitt, some rights reserved (CC-BY-NC)

©Sequoia Janirella Wrens, some rights reserved (CC-BY-NC)

©Susan J. Hewitt, some rights reserved (CC-BY-NC)

©Susan J. Hewitt, some rights reserved (CC-BY-NC)

©Alexis, some rights reserved (CC-BY)

©Gennadiy Okatov, some rights reserved (CC-BY-NC)

©Markku Könkkölä, some rights reserved (CC-BY-NC)

©ruslan, some rights reserved (CC-BY-NC)

©Alexis, some rights reserved (CC-BY)

©Alexis, some rights reserved (CC-BY)

©Susan J. Hewitt, some rights reserved (CC-BY-NC)

©Alexis, some rights reserved (CC-BY)

©Ryan Donnelly, some rights reserved (CC-BY-NC)

©Ryan Donnelly, some rights reserved (CC-BY-NC)

©Ryan Donnelly, some rights reserved (CC-BY-NC)

©Ryan Donnelly, some rights reserved (CC-BY-NC)

©Susan J. Hewitt, some rights reserved (CC-BY-NC)

©Susan J. Hewitt, some rights reserved (CC-BY-NC)

©Susan J. Hewitt, some rights reserved (CC-BY-NC)

©Alexis, some rights reserved (CC-BY)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©esdena, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Mislav Kužić, some rights reserved (CC-BY-NC)

©Susan J. Hewitt, some rights reserved (CC-BY-NC)

©Alexis, some rights reserved (CC-BY)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Alexis, some rights reserved (CC-BY)

©brnhn, some rights reserved (CC-BY-NC)

©brnhn, some rights reserved (CC-BY-NC)

©brnhn, some rights reserved (CC-BY-NC)

©Jared Shorma, some rights reserved (CC-BY)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©adhillon, some rights reserved (CC-BY-NC)

©adhillon, some rights reserved (CC-BY-NC)

©adhillon, some rights reserved (CC-BY-NC)

©adhillon, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

©Ivlev-Konstantin-Sergeevith, some rights reserved (CC-BY-NC)

Parent Taxon

• Erysiphe

Sibling Taxa

• Erysiphe abbreviata
• Erysiphe acaenae
• Erysiphe adunca
• Erysiphe afrormosiae
• Erysiphe akebiae
• Erysiphe alphitoides
• Erysiphe aquilegiae
• Erysiphe arcuata
• Erysiphe aristolochiae
• Erysiphe asclepiadis
• Erysiphe astragali
• Erysiphe aucubae
• Erysiphe aurea
• Erysiphe australiana
• Erysiphe azaleae
• Erysiphe baeumleri
• Erysiphe begoniae
• Erysiphe begoniicola
• Erysiphe berberidicola
• Erysiphe berberidis
• Erysiphe betae
• Erysiphe bremeri
• Erysiphe buhrii
• Erysiphe bulbouncinula
• Erysiphe bunkiniana
• Erysiphe calocladophora
• Erysiphe capreae
• Erysiphe caprifoliacearum
• Erysiphe carpophila
• Erysiphe catalpae
• Erysiphe cedrelae
• Erysiphe circaeae
• Erysiphe clintonii
• Erysiphe convolvuli
• Erysiphe cornicola
• Erysiphe corylacearum
• Erysiphe cotini
• Erysiphe cruciferarum
• Erysiphe decaisneae
• Erysiphe densa
• Erysiphe deutziae
• Erysiphe deutziicola
• Erysiphe diervillae
• Erysiphe diffusa
• Erysiphe divaricata
• Erysiphe doidgeae
• Erysiphe elevata
• Erysiphe ellisii
• Erysiphe erineophila
• Erysiphe eschscholziae
• Erysiphe euonymi
• Erysiphe euonymi-japonici
• Erysiphe euonymicola
• Erysiphe euphorbiicola
• Erysiphe extensa
• Erysiphe fallax
• Erysiphe flexuosa
• Erysiphe friesii
• Erysiphe galegae
• Erysiphe geraniacearum
• Erysiphe gorlenkoi
• Erysiphe grossulariae
• Erysiphe guarinonii
• Erysiphe havrylenkoana
• Erysiphe hedwigii
• Erysiphe hellebori
• Erysiphe heraclei
• Erysiphe holosericea
• Erysiphe hommae
• Erysiphe howeana
• Erysiphe huayinensis
• Erysiphe hylomeci
• Erysiphe hyperici
• Erysiphe hypogena
• Erysiphe hypophylla
• Erysiphe incrassata
• Erysiphe indigoferae
• Erysiphe intermedia
• Erysiphe iranica
• Erysiphe japonica
• Erysiphe kenjiana
• Erysiphe knautiae
• Erysiphe krumbholzii
• Erysiphe lagerstroemiae
• Erysiphe lathyricola
• Erysiphe lespedezae
• Erysiphe lianyungangensis
• Erysiphe limonii
• Erysiphe liriodendri
• Erysiphe lonicerae
• Erysiphe ludens
• Erysiphe lycopsidis
• Erysiphe lythri
• Erysiphe macleayae
• Erysiphe macrospora
• Erysiphe magnifica
• Erysiphe magnoliicola
• Erysiphe magnusii
• Erysiphe mandshurica
• Erysiphe mayorii
• Erysiphe montagnei
• Erysiphe necator
• Erysiphe nemopanthi
• Erysiphe ornata
• Erysiphe paeoniae
• Erysiphe palczewskii
• Erysiphe parvula
• Erysiphe peckii
• Erysiphe penicillata
• Erysiphe peruviana
• Erysiphe pileae
• Erysiphe pisi
• Erysiphe platani
• Erysiphe polygoni
• Erysiphe prunastri
• Erysiphe pseudacaciae
• Erysiphe pseudolonicerae
• Erysiphe pseudoregularis
• Erysiphe pulchra
• Erysiphe quercicola
• Erysiphe rabdosiae
• Erysiphe ravenelii
• Erysiphe rayssiae
• Erysiphe robiniae
• Erysiphe rorippae
• Erysiphe rubicola
• Erysiphe russellii
• Erysiphe ruyongzhengiana
• Erysiphe salicina
• Erysiphe salicis
• Erysiphe salicis-gracilistylae
• Erysiphe salmonii
• Erysiphe securinegae
• Erysiphe sedi
• Erysiphe swainsonae
• Erysiphe symphoricarpi
• Erysiphe syringae
• Erysiphe syringae-japonicae
• Erysiphe takamatsui
• Erysiphe thesii
• Erysiphe thuemenii
• Erysiphe tortilis
• Erysiphe trifoliorum
• Erysiphe trinae
• Erysiphe ulmariae
• Erysiphe ulmi
• Erysiphe urticae
• Erysiphe vaccinii
• Erysiphe vanbruntiana
• Erysiphe vernalis
• Erysiphe verniciferae
• Erysiphe viburni
• Erysiphe viburni-plicati
• Erysiphe viburniphila
• Erysiphe yamadae
• Microsphaera dubyi
• Microsphaera multappendicis
• Pseudoidium araliacearum
• Pseudoidium hardenbergiae
• Pseudoidium hortensiae
• Pseudoidium indica
• Pseudoidium ipomoeae
• Pseudoidium meliacearum
• Pseudoidium neolycopersici
• Pseudoidium vincae

Child Taxa

• Erysiphe polygoni epimedii
• Erysiphe polygoni muehlenbeckiae
• Erysiphe polygoni polygoni
• Erysiphe polygoni robiniae-hispidae
• Erysiphe polygoni sepulta

Top Observation Places

• Vienna
• Boulder
• Huyton
• Zheleznogorsk
• Manhattan
• Astoria
• East Harlem
• Jackson Heights
• Kreuzberg
• Charlottenburg
• Schöneberg
• Wilmersdorf
• Steglitz
• Buffalo
• Niagara Falls