EUNIS habitat classification 2017 > R - Grasslands and lands dominated by forbs, mosses or lichens > R1 - Dry grasslands > R1T - Azorean open, dry, acid to neutral grassland

Azorean open, dry, acid to neutral grassland

Description (English)

Ungrazed grassland, with mixtures of grasses, herbs and mat-formers, including many endemics which may dominate, confined to the Azores where it is characteristic of exposed or unstable rocky slopes, ledges and landslips with nutrient-poor acid soils. The species composition varies according to altitude and climate, rock type and terrain stability.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code R1T
Relation to Resolution 4 habitat type (used for designation of Emerald sites)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Indicator species

Diagnostic species
Constant species
Dominant species
Flowering Plants Agrostis congestiflora
Flowering Plants Holcus rigidus
Ferns Selaginella kraussiana
Flowering Plants Luzula elegans
Flowering Plants Festuca petraea
Ferns Diplazium caudatum
Flowering Plants Deschampsia foliosa
Flowering Plants Sibthorpia europaea
Flowering Plants Rubus hochstetterorum
Flowering Plants Carex peregrina
Ferns Woodwardia radicans
Conifers Juniperus brevifolia
Ferns Trichomanes speciosum
Flowering Plants Sanicula azorica
Flowering Plants Vaccinium cylindraceum
Flowering Plants Lysimachia nemorum
Ferns Blechnum spicant

Diagnostic species occur concentrated in the habitat in question, but are absent or rare in other habitats. They are good positive indicators of the habitat, but they do not need to occur in every location of the habitat.

Species scientific name English common name Species group
Agrostis congestiflora Flowering Plants
Holcus rigidus Flowering Plants
Selaginella kraussiana Ferns
Luzula elegans Flowering Plants
Festuca petraea Flowering Plants
Diplazium caudatum Ferns
Deschampsia foliosa Flowering Plants
Sibthorpia europaea Flowering Plants
Rubus hochstetterorum Flowering Plants
Carex peregrina Flowering Plants
Woodwardia radicans Ferns
Juniperus brevifolia Conifers
Trichomanes speciosum Ferns
Sanicula azorica Flowering Plants
Vaccinium cylindraceum Flowering Plants
Lysimachia nemorum Flowering Plants
Blechnum spicant Ferns
Ferns Blechnum spicant
Flowering Plants Lysimachia nemorum
Flowering Plants Luzula elegans
Flowering Plants Holcus rigidus
Ferns Woodwardia radicans
Flowering Plants Vaccinium cylindraceum
Flowering Plants Sibthorpia europaea
Ferns Selaginella kraussiana
Flowering Plants Rubia peregrina
Conifers Juniperus brevifolia
Flowering Plants Festuca petraea
Flowering Plants Erica scoparia
Ferns Diplazium caudatum
Flowering Plants Deschampsia foliosa
Flowering Plants Daucus carota
Flowering Plants Agrostis congestiflora
Flowering Plants Agrostis castellana
Ferns Trichomanes speciosum

Constant species occur frequently in the habitat, but they may include generalist species that are also frequent in other habitats.

Species scientific name English common name Species group
Blechnum spicant Ferns
Lysimachia nemorum Flowering Plants
Luzula elegans Flowering Plants
Holcus rigidus Flowering Plants
Woodwardia radicans Ferns
Vaccinium cylindraceum Flowering Plants
Sibthorpia europaea Flowering Plants
Selaginella kraussiana Ferns
Rubia peregrina Flowering Plants
Juniperus brevifolia Conifers
Festuca petraea Flowering Plants
Erica scoparia Flowering Plants
Diplazium caudatum Ferns
Deschampsia foliosa Flowering Plants
Daucus carota Flowering Plants
Agrostis congestiflora Flowering Plants
Agrostis castellana Flowering Plants
Trichomanes speciosum Ferns
Ferns Woodwardia radicans
Ferns Selaginella kraussiana
Flowering Plants Holcus rigidus
Flowering Plants Deschampsia foliosa
Flowering Plants Corema album

Dominant species are those that often reach high cover in the habitat, thus determining the habitat physiognomy.

Species scientific name English common name Species group
Woodwardia radicans Ferns
Selaginella kraussiana Ferns
Holcus rigidus Flowering Plants
Deschampsia foliosa Flowering Plants
Corema album Flowering Plants

Other classifications

Classification Code Habitat type name Relationship type
European Red List of Habitats E1.F Azorean open dry, acid to neutral grassland same
For relation to plant communities (syntaxa), see Vegetation types

History

Not available
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