Polygonum arenastrum Boreau
(Equal-leaved Knotgrass)

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

The following relationships have been collated from the published literature (see 'Interaction 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 arenastrum/Polygonum arenastrumequal-leaved knotgrasslive 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 arenastrum/Polygonum arenastrumequal-leaved knotgrasslive 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 arenastrum/Polygonum arenastrumequal-leaved knotgrasslive cleistothecium parasitises live
leaf (live) live leaf is parasitised by pycnium Rare Uromyces polygoni-avicularis Knotgrass Rust Pucciniales: Pucciniaceae 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 arenastrum/Polygonum arenastrumequal-leaved knotgrassliveleafRare (5-6)pycnium parasitises live leaf
leaf (live) live leaf is parasitised by amphigenous uredium Minor Uromyces polygoni-avicularis Knotgrass Rust Pucciniales: Pucciniaceae 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 / parasite /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum arenastrum/Polygonum arenastrumequal-leaved knotgrassliveleafMinor (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 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 arenastrum/Polygonum arenastrumequal-leaved knotgrassliveleafRare (5-6)hypophyllous, aggregated or circinate aecium causes spots on live leaf
stem (live) live stem is parasitised by telium Minor Uromyces polygoni-avicularis Knotgrass Rust Pucciniales: Pucciniaceae 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 / parasite /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum arenastrum/Polygonum arenastrumequal-leaved knotgrasslivestemMinor (7-11)telium parasitises live stem
stem (live) live stem is parasitised by uredium Minor Uromyces polygoni-avicularis Knotgrass Rust Pucciniales: Pucciniaceae 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 / parasite /Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Polygonum arenastrum/Polygonum arenastrumequal-leaved knotgrasslivestemMinor (7-11)uredium parasitises live stem

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
Wilson, M., & Henderson, D., 1966British Rust Fungi384pp, Cambridge University Press

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

Taxonomic hierarchy:
SpeciesPolygonum arenastrum (Equal-leaved 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 arenastrum (Equal-leaved Knotgrass)

Polygonum arenastrum (Equal-leaved 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 arenastrum (Equal-leaved Knotgrass):

BioImagesBioImages (www.bioimages.org.uk) has 31 images of Polygonum arenastrum (Equal-leaved Knotgrass)
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