In addition to the herds of chamois and alpine ibex, the nature reserve shelters 32 protected vascular species. For some species, such as the seslenie ovale, the artemisia borealis or the astragalus leontinus, the reserve protects a significant part of the French populations. In terms of protected species listed on the red lists of endangered species, the Grande Sassière Nature Reserve is the richest reserve in metropolitan France. Here, more than elsewhere, you can touch with eyes only even the simplest of sainfoins!