In Apuseni Mountains, Arnica occurs in the following grassland types: Nardus stricta, Nardus stricta – Festuca rubra, Festuca rubra and Festuca rubra – Agrostis capillaris. In these habitats, Arnica grows along other species such as: Polygala vulgaris, Gentiana austriaca, Scorzonera rosea, Hieracium aurantiacum, Viola declinata, Croccus heufilianus, Gymnadea conopsea, Traunsteinera globosa etc.
The species is important both for conservative interests and for medicinal and cosmetic use. Arnica montana is a protected species in Europe, as it is listed in various categories of the Red List depending on the region (vulnerable in Romania, endangered in Germany, critically endangered in Netherlands etc.). The species is listed in Annex V of Nature 2000 program (Council Directive 92/43/EEC). The low spread in Europe grants this species an endemic status.
The conservation of the species is strictly connected to the existence of the habitat which, in turn, depends on the applied grassland management.
The Arnica montana habitats in the northern and central parts of Apuseni Mountains are ecologic certified.