Scientific name Juncus effususRumex acetosa grassland
Common name Soft Rush – Common Sorrel grassland
Community code GL2D

 

GL2D: Juncus effusus – Rumex acetosa grassland  GL2D: Juncus effusus – Rumex acetosa grassland  GL2D map: Juncus effusus – Rumex acetosa grassland

Download full pdf synopsis: GL2D

 

Vegetation

This community is dominated by tall, thigh-high tussocks of Juncus effusus, between which can be found a lower sward of Agrostis stolonifera and Holcus lanatus that is often poached by grazing livestock. No other species are constant here. Rumex acetosa and Ranunculus repens are frequently present, but forb cover is very low within this assemblage. Anthoxanthum odoratum is frequent, while Juncus acutiflorus occurs occasionally and can be abundant, but is subordinate to Juncus effusus. Occasional forbs characteristic of the poorly draining soil conditions include Cardamine pratensis, Filipendula ulmaria, Galium palustre, Epilobium obscurum and Lotus pedunculatus. The bryophyte layer is a rather standard, scanty mixture of Kindbergia praelonga, Calliergonella cuspidata, Rhytidiadelphus squarrosus and Brachythecium rutabulum.

 

Ecology

The Juncus effusus Rumex acetosa grassland is a very common sward type across Ireland on low-production farmland. It is a very species-poor community of wet, gleyed soils, usually on flat ground or gentle slopes in the lowlands. Soils are mildly acidic and of average fertility.

 

Sub-communities

No sub-communities are described.

 

Similar communities

This community is similar to the other mesotrophic rush-pasture community, GL2B Holcus lanatus Juncus effusus grassland. Vegetation in which Juncus effusus dominates will tend to belong in this community, however, which is on average less species-rich.

 

Conservation value

This is a species-poor grassland community of relatively low conservation value.

 

Management

These swards are managed as rough grazing land (typically for cattle). Occasional topping of the rushes may occur. The main threats to these grasslands include improvement, abandonment and afforestation.