British Fraxinus - Acer campestre - Mercurialis perennis forests
Description (English)
Forests and woodland of Fraxinus excelsior, with Quercus robur (in the southwest), or Quercus petraea, Acer pseudoplatanus, Ulmus glabra (in the northwest), with an understorey dominated by Corylus avellana, frequently accompanied by Crataegus monogyna, Crataegus laevigata, Acer campestre, Sambucus nigra, characteristic of often calcareous base-rich soils in relatively warm and dry lowlands of southern Britain, distributed mostly in southern and central England, eastern Wales, southern and eastern Scotland. The field layer comprises Mercurialis perennis, Hyacinthoides non-scripta, Circaea lutetiana, Geum urbanum, Arum maculatum, Viola riviniana, Viola reichenbachiana, Sanicula europaea, Lamium galeobdolon, Carex sylvatica; Primula vulgaris and Glechoma hederacea, Anemone nemorosa, Deschampsia cespitosa, Hedera helix, Geranium robertianum, Allium ursinum, Teucrium scorodonia characterize geographical and edaphic subtypes. In humid northern and western Britain, outside of the range of Fagus sylvatica and Carpinus betulus, the separation between this unit and the ravine forests of unit G1.A41, developed on unstable screes and colluvions, is poorly marked.
Source: EUNIS habitat classification
Quick facts
| EUNIS habitat type | code G1.A22 |
|---|
Vegetation types
Relation to vegetation types (syntaxa)
Not availableSpecies mentioned in habitat description
Flowering Plants
Acer campestre
Flowering Plants
Acer pseudoplatanus
Flowering Plants
Allium ursinum
Flowering Plants
Anemone nemorosa
Flowering Plants
Arum maculatum
Flowering Plants
Carex sylvatica
Flowering Plants
Carpinus betulus
Flowering Plants
Circaea lutetiana
Flowering Plants
Corylus avellana
Flowering Plants
Crataegus laevigata
Flowering Plants
Crataegus monogyna
Flowering Plants
Deschampsia cespitosa
Flowering Plants
Fagus sylvatica
Flowering Plants
Fraxinus excelsior
Flowering Plants
Geranium robertianum
Flowering Plants
Geum urbanum
Flowering Plants
Glechoma hederacea
Flowering Plants
Hedera helix
Flowering Plants
Hyacinthoides non-scripta
Flowering Plants
Mercurialis perennis
Flowering Plants
Primula vulgaris
Flowering Plants
Quercus petraea
Flowering Plants
Quercus robur
Flowering Plants
Sambucus nigra
Flowering Plants
Sanicula europaea
Flowering Plants
Teucrium scorodonia
Flowering Plants
Ulmus glabra
Flowering Plants
Viola reichenbachiana
Flowering Plants
Viola riviniana
| Species scientific name | English common name | Species group |
|---|---|---|
| Acer campestre | Flowering Plants | |
| Acer pseudoplatanus | Flowering Plants | |
| Allium ursinum | Flowering Plants | |
| Anemone nemorosa | Flowering Plants | |
| Arum maculatum | Flowering Plants | |
| Carex sylvatica | Flowering Plants | |
| Carpinus betulus | Flowering Plants | |
| Circaea lutetiana | Flowering Plants | |
| Corylus avellana | Flowering Plants | |
| Crataegus laevigata | Flowering Plants | |
| Crataegus monogyna | Flowering Plants | |
| Deschampsia cespitosa | Flowering Plants | |
| Fagus sylvatica | Flowering Plants | |
| Fraxinus excelsior | Flowering Plants | |
| Geranium robertianum | Flowering Plants | |
| Geum urbanum | Flowering Plants | |
| Glechoma hederacea | Flowering Plants | |
| Hedera helix | Flowering Plants | |
| Hyacinthoides non-scripta | Flowering Plants | |
| Mercurialis perennis | Flowering Plants | |
| Primula vulgaris | Flowering Plants | |
| Quercus petraea | Flowering Plants | |
| Quercus robur | Flowering Plants | |
| Sambucus nigra | Flowering Plants | |
| Sanicula europaea | Flowering Plants | |
| Teucrium scorodonia | Flowering Plants | |
| Ulmus glabra | Flowering Plants | |
| Viola reichenbachiana | Flowering Plants | |
| Viola riviniana | Flowering Plants |
Other classifications
| Classification | Code | Habitat type name | Relationship type |
|---|---|---|---|
| Palaearctic Habitat Classification 200112 | 41.32 | British ash-field maple-mercury forests | source |
| CORINE Land Cover | 3.1.1. | Broad-leaved forest | n/a |
| BEAR Forest Types for Biodiversity Assessment | 10 | Ashwood | wider |
| National Vegetation Classification (UK) | W8 | Fraxinus excelsior-Acer campestre-Mercurialis perennis woodland | narrower |
History
| Classification | Code | Habitat type name | Relationship type |
|---|---|---|---|
| EUNIS Habitat Classification 200410 | G1.A22 | British Fraxinus - Acer campestre - Mercurialis perennis forests | same |
| EUNIS Habitat Classification 200308 | G1.A22 | British Fraxinus - Acer campestre - Mercurialis perennis forests | same |
| EUNIS Habitat Classification 200202 | G1.A22 | British Fraxinus - Acer campestre - Mercurialis perennis forests | same |
| EUNIS Habitat Classification 199910 | G1.A22 | British Fraxinus - Acer campestre - Mercurialis perennis forests | same |
| EUNIS Habitat Classification 199811 | G1.B22 | British Fraxinus-Acer campestre-Mercurialis perennis forests | same |
| EUNIS Habitat Classification 199712 | G1.A2 | British ash-field maple-dog's mercury forests | same |
| Palaearctic Habitat Classification 199905 | 41.32 | British ash-field maple-mercury forests | same |
| Palaearctic Habitat Classification 1997 | 41.32 | British ash-field maple-mercury forests | same |
| Palaearctic Habitat Classification 1996 | 41.32 | same | |
| Palaearctic Habitat Classification 1993 | 41.32 | same | |
| CORINE Biotopes Classification 1991 | 41.32 | same |
