C3.411 - Niveau 5 : Pelouses à Littorelle, étangs à Lobélie, gazons à Isoète
Description
Littorella uniflora, Lobelia dortmanna and Isoetes spp. formations of oligotrophic waters of the boreal and nemoral zones of the Palaearctic and of mountains of the southern Palaearctic.
C3.4113 - Niveau 6 : Gazons à Isoète eurosibériens
Description
Clear-water quillwort swards formed by the northern European and montane Isoetes lacustris and Isoetes echinospora or by the very local endemics Isoetes tenuissima of central western France and Isoetes brochonii of the eastern Pyrenees. Associated species may include Lobelia dortmanna, Sparganium angustifolium, Littorella uniflora, Hippuris vulgaris.