Charophytes' grasslands are one of the most characteristic formations of the National Park, formed by different members of genus Chara (Chara hispida, Chara major, Chara canescens), also known locally as "ovas", and are able to form an almost continuous tapestry.
Græsarealer med kransnål er en af ​​de mest karakteristiske formationer i nationalparken dannet af forskellige arter i Kransalgeslægten (Chara hispida, Chara major, Chara canescens), også kendt lokalt som "Ovas" og var i stand til at danne en næsten kontinuerligt tæppe.