Common Spike Rush

In Great Britain and/or Ireland:
Foodplant / saprobe
sporodochium of Arthrinium dematiaceous anamorph of Arthrinium puccinioides is saprobic on often dry, bleached, dead leaf of Eleocharis palustris
Remarks: season: (1-)3-5(-12)

Foodplant / feeds on
immersed, dark brown pycnidium of Ascochyta coelomycetous anamorph of Ascochyta decipiens feeds on stem of Eleocharis palustris

Foodplant / pathogen
protruding stroma of Claviceps nigricans infects and damages inflorescence of Eleocharis palustris
Remarks: season: 4-5

Foodplant / feeds on
pycnidium of Coniothyrium coelomycetous anamorph of Coniothyrium scirpi feeds on stem of Eleocharis palustris

Foodplant / open feeder
larva of Dolerus anticus grazes on leaf of Eleocharis palustris
Other: sole host/prey

Foodplant / feeds on
adult of Donacia thalassina feeds on leaf of Eleocharis palustris
Remarks: season: 6-8

Foodplant / saprobe
superficial perithecium of Loramyces juncicola is saprobic on dead, mostly submerged stem of Eleocharis palustris
Remarks: season: 6-8

Foodplant / saprobe
colony of Alternaria dematiaceous anamorph of Macrospora scirpicola is saprobic on dead, standing stem of Eleocharis palustris
Remarks: season: 9-5

Foodplant / saprobe
apothecial sclerotium of Myriosclerotinia scirpicola is saprobic on previous year's dead stem of Eleocharis palustris
Remarks: season: 6

Foodplant / saprobe
sessile apothecium of Nimbomollisia eriophori is saprobic on dead stem of Eleocharis palustris
Remarks: season: 6-10

Foodplant / saprobe
apothecium of Niptera pulla is saprobic on dead Eleocharis palustris
Remarks: season: 3-5

Foodplant / saprobe
immersed pseudothecium of Pleospora palustris is saprobic on dead stem of Eleocharis palustris
Remarks: season: 6

Foodplant / spot causer
colony of Pseudocercosporella anamorph of Pseudocercosporella scirpi causes spots on live stem (flowering) of Eleocharis palustris
Remarks: season: 9-10

Foodplant / saprobe
apothecium of Psilachnum lateritioalbum is saprobic on dead Eleocharis palustris
Remarks: season: 7-8

Foodplant / saprobe
stalked apothecium of Rutstroemia plana is saprobic on dead, locally faintly bleached stem of Eleocharis palustris
Remarks: season: 6

Foodplant / saprobe
immersed pycnidium of Stagonospora coelomycetous anamorph of Stagonospora aquatica is saprobic on dead stem of Eleocharis palustris
Remarks: season: 7-9

Foodplant / saprobe
scattered, immersed pycnidium of Stagonospora coelomycetous anamorph of Stagonospora heleocharidis is saprobic on dead leaf of Eleocharis palustris
Remarks: season: 1-6

Foodplant / internal feeder
larva of Thryogenes nereis feeds within stem (lower part) of Eleocharis palustris