R1-F - Pelouses sèches méditerranéennes riches en annuelles

Mediterranean annual-rich dry grassland

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Usually ephemeral vegetation related to the yearly cycle of spring rains and summer drought through the Mediterranean where a high diversity of small annual plants make a brief colourful appearance on bare patches of mainly base-rich soils. The species composition varies greatly, according to the particular regional terrain and climate and the impact of traditional pastoralism.

Espèces diagnostiques

Euphorbia exigua, Trachynia distachya, Minuartia hybrida aggr., Asterolinon linum-stellatum, Catapodium rigidum, Filago pyramidata, Asteriscus aquaticus, Neatostema apulum, Hippocrepis ciliata, Campanula erinus, Hornungia petraea, Linum strictum aggr., Cleonia lusitanica, Bombycilaena erecta, Galium parisiense, Medicago minima, Polygala monspeliaca, Trifolium scabrum, Helianthemum salicifolium, Clypeola jonthlaspi

Espèces constantes

Trachynia distachya, Catapodium rigidum, Asterolinon linum-stellatum, Linum strictum aggr., Euphorbia exigua, Medicago minima, Trifolium scabrum, Filago pyramidata, Sherardia arvensis, Minuartia hybrida aggr., Erodium cicutarium, Trifolium campestre, Hornungia petraea, Helianthemum salicifolium, Bombycilaena erecta, Arenaria leptoclados, Leontodon saxatilis, Hypochaeris achyrophorus, Galium parisiense, Anagallis arvensis

Espèces dominantes

Trachynia distachya

Bibliography

 European Topic Centre on Biological Diversity, 2021. EUNIS terrestrial habitat classification 2021 including crosswalks. ETC/BD-EEA. Table Excel transmise par S. Hennekens (Alterra) le 14/02/2022. (Source)