The species Abies pinsapo maroccana, endemic to Morocco, is rare, is rare, confined to the only limestone mountains of the Western Rif, around Chefchaouen, where its populations do not exceed 6000 ha in area and are generally infiltrated by cedars, oaks or pines, with very often an undergrowth comparable to that of the cedar grove. Some thirty species of breeding birds find refuge there. Mammals include, among others, the Magot, the Wild Boar and the Otter (Lutra lutra).

The Moroccan fir is endemic to the Rif, where it covers a few thousand hectares: 3,800 to 5,000 according to Boudy (1950), and 5,500 according to Métro (1958), which does not consider the Tazaot fir to be a distinct species. The species' range is in decline. The most beautiful massif is the Talassentane fir forest, some 10 km north of Bab Taza, which still covers 2,500 ha. Witness to a richer past, both floristic and forest, the Talassentane forest constitutes, along with that of Jebel Tazaot, a true relic of the primitive forest of the Rif. Its very special flora, similar to that of Mediterranean Europe, was the subject of a forest inventory in 1970, which was supplemented by a study carried out in 1971 by a team of national and foreign specialists.

The bottom of the population is formed by the Abies marocana; alongside it there are other interesting or little-known species such as Pinus nigra ssp. dus/ana var. mauretanica, the Pinus pinaster ssp. maghrebiana, the Cedar, the Maghrebiana, the Cedar, the Tawny Oak, etc. To the scientific interest of this formation is added that of its location in a mountainous site of real beauty, which also ensures that it has a tourist vocation.