Polygonum aviculare L.
(Knotgrass)

Interactions where Polygonum aviculare is the victim or passive partner (and generally loses out from the process)

The following relationships have been collated from the published literature (see 'References').

Filters:

Affected Part Summary Taxon Vernacular Classification References Darwin Classification of Active Taxon Active Taxon Active Vernacular Active Taxon Uncertain Active State Active Part Active Stage Relationship Relationship Uncertain Relationship Geography Darwin Classification of Passive Taxon Passive Taxon Passive Vernacular Passive Taxon Uncertain Passive State Passive Part Passive Stage Passive Taxon's significance to Active Taxon Indoors etc Season Summary
(live) live is parasitised by sporangium UK/Ireland Peronospora polygoni a downy mildew Peronosporales: Peronosporaceae A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002
/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora polygoni/Peronospora polygonia downy mildewsporangium Foodplant / parasiteUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrasslive sporangium parasitises live
(live) live is parasitised by conidial anamorph UK/Ireland Erysiphe polygoni a powdery mildew Erysiphales: Erysiphaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
An Introduction to British Powdery Mildews, Ing, B., 1990
/Fungi/Ascomycota/Leotiomycetes/Erysiphales/Erysiphaceae/Erysiphe polygoni/Erysiphe polygonia powdery mildewconidial anamorph Foodplant / parasiteUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrasslive conidial anamorph parasitises live
(live) live is parasitised by cleistothecium UK/Ireland Erysiphe polygoni a powdery mildew Erysiphales: Erysiphaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
An Introduction to British Powdery Mildews, Ing, B., 1990
/Fungi/Ascomycota/Leotiomycetes/Erysiphales/Erysiphaceae/Erysiphe polygoni/Erysiphe polygonia powdery mildewcleistothecium Foodplant / parasiteUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrasslive cleistothecium parasitises live
bud bud is galled by larva Augasma aeratella Knotgrass Case-bearer Lepidoptera: Coleophoridae Provisional Keys to British Plant Galls, Stubbs, F.B. (Editor), 1986
/Animalia/Arthropoda/Insecta/Lepidoptera/Coleophoridae/Augasma aeratella/Augasma aeratellaknotgrass case-bearerlarva Foodplant / gall /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrassbud larva causes gall of bud
inflorescence axis inflorescence axis of stunted is galled by UK/Ireland Melanopsichium nepalense a galling smut fungus Ustilaginales: Melanopsichiaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
Checklist of the British and Irish Basidiomycota, Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005
Melanopsichium (Ustilaginales), a genus new to the British Isles, Spooner, B.M., 1985
Provisional Keys to British Plant Galls, Stubbs, F.B. (Editor), 1986
/Fungi/Basidiomycota/Ustilaginomycetes/Ustilaginales/Melanopsichiaceae/Melanopsichium nepalense/Melanopsichium nepalensea galling smut fungus Foodplant / gallUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrassinflorescence axisstunted causes gall of inflorescence axis of stunted
leaf leaf is galled by Aspidaphis adjuvans an aphid Hemiptera: Aphididae Provisional Keys to British Plant Galls, Stubbs, F.B. (Editor), 1986
/Animalia/Arthropoda/Insecta/Hemiptera/Aphididae/Aspidaphis adjuvans/Aspidaphis adjuvansan aphid Foodplant / gall /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrassleaf causes gall of leaf
leaf (live) live leaf is parasitised by pycnium Rare Uromyces polygoni-avicularis Knotgrass Rust Pucciniales: Pucciniaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
Checklist of the British and Irish Basidiomycota, Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005
British Rust Fungi, Wilson, M., & Henderson, D., 1966
/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Uromyces polygoni-avicularis/Uromyces polygoni-avicularisknotgrass rustpycnium Foodplant / parasite /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrassliveleafRare (5-6)pycnium parasitises live leaf
leaf (live) live leaf is parasitised by amphigenous uredium UK/IrelandMajor Uromyces polygoni-avicularis Knotgrass Rust Pucciniales: Pucciniaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
Checklist of the British and Irish Basidiomycota, Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005
British Rust Fungi, Wilson, M., & Henderson, D., 1966
/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Uromyces polygoni-avicularis/Uromyces polygoni-avicularisknotgrass rustamphigenousuredium Foodplant / parasiteUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrassliveleafMajor (7-11)amphigenous uredium parasitises live leaf
leaf (live) live leaf is spotted by hypophyllous, aggregated or circinate aecium Rare Uromyces polygoni-avicularis Knotgrass Rust Pucciniales: Pucciniaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
Checklist of the British and Irish Basidiomycota, Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005
British Rust Fungi, Wilson, M., & Henderson, D., 1966
/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Uromyces polygoni-avicularis/Uromyces polygoni-avicularisknotgrass rusthypophyllous, aggregated or circinateaecium Foodplant / spot causer /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrassliveleafRare (5-6)hypophyllous, aggregated or circinate aecium causes spots on live leaf
shoot tip shoot tip is galled by Aspidaphis adjuvans an aphid Hemiptera: Aphididae Provisional Keys to British Plant Galls, Stubbs, F.B. (Editor), 1986
/Animalia/Arthropoda/Insecta/Hemiptera/Aphididae/Aspidaphis adjuvans/Aspidaphis adjuvansan aphid Foodplant / gall /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrassshoot tip causes gall of shoot tip
stem stem of stunted is galled by UK/Ireland Melanopsichium nepalense a galling smut fungus Ustilaginales: Melanopsichiaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
Checklist of the British and Irish Basidiomycota, Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005
Melanopsichium (Ustilaginales), a genus new to the British Isles, Spooner, B.M., 1985
Provisional Keys to British Plant Galls, Stubbs, F.B. (Editor), 1986
/Fungi/Basidiomycota/Ustilaginomycetes/Ustilaginales/Melanopsichiaceae/Melanopsichium nepalense/Melanopsichium nepalensea galling smut fungus Foodplant / gallUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrassstemstunted causes gall of stem of stunted
stem (live) live stem is parasitised by telium UK/IrelandMajor Uromyces polygoni-avicularis Knotgrass Rust Pucciniales: Pucciniaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
Checklist of the British and Irish Basidiomycota, Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005
British Rust Fungi, Wilson, M., & Henderson, D., 1966
/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Uromyces polygoni-avicularis/Uromyces polygoni-avicularisknotgrass rusttelium Foodplant / parasiteUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrasslivestemMajor (7-11)telium parasitises live stem
stem (live) live stem is parasitised by uredium UK/IrelandMajor Uromyces polygoni-avicularis Knotgrass Rust Pucciniales: Pucciniaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
Checklist of the British and Irish Basidiomycota, Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005
British Rust Fungi, Wilson, M., & Henderson, D., 1966
/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Uromyces polygoni-avicularis/Uromyces polygoni-avicularisknotgrass rusturedium Foodplant / parasiteUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum aviculare/Polygonum aviculareknotgrasslivestemMajor (7-11)uredium parasitises live stem

Polygonum aviculare (Knotgrass) may also be included in 'fed on by' relations listed under the following higher taxa:

Author & YearTitleSource
Ellis, M.B. & J.P., 1997Microfungi on Land Plants: An Identification Handbook2nd (New Enlarged) edition, 868pp, The Richmond Publishing Co. Ltd
Ing, B., 1990An Introduction to British Powdery MildewsMycologist Vol 4 (1) et seq.
Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005Checklist of the British and Irish Basidiomycota517pp, Royal Botanic Gardens, Kew
Preece, T.F., 2002A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles33pp, British Mycological Society
Spooner, B.M., 1985Melanopsichium (Ustilaginales), a genus new to the British IslesTBMS Vol 85 (3): 540-544.
Stubbs, F.B. (Editor), 1986Provisional Keys to British Plant Galls95pp, British Plant Gall Society (BPGS)
Wilson, M., & Henderson, D., 1966British Rust Fungi384pp, Cambridge University Press
Taxonomic hierarchy:
SpeciesPolygonum aviculare (Knotgrass)
GenusPolygonum (knotgrass)
FamilyPOLYGONACEAE (docks and knotgrasses)
OrderCARYOPHYLLALES (pinks, goosefoots and docks)
SubclassEU-DICOTS (dicotyledonous flowering plants)
ClassMAGNOLIOPSIDA (flowering plants)
PhylumTRACHEOPHYTA (vascular plants)
KingdomPLANTAE (plants)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
NBNNBN (data.nbn.org.uk) has a distribution map for Polygonum aviculare (Knotgrass)

Polygonum aviculare (Knotgrass) may be included in identification literature listed under the following higher taxa:

Literature listed under the following higher taxa may be relevant to Polygonum aviculare (Knotgrass):

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