Hannachi , Abdelhakim2025-11-112025-11-112022-09-14http://dspace.univ-skikda.dz:4000/handle/123456789/5361The study focused on the inventory and characterization of the Weeds flora of Rosaceae fruit trees in the Skikda region (Algeria). Forty-seven pharmacological surveys were carried out and made it possible to identify 102 weed species. The dicotyledons are dominant with 72 species. Monocotyledons include 30 species. The species listed are divided into 37 botanical families. The ratio of the number of monocotyledonous species to the number of dicotyledonous species (M/D) is 18.75. The biological type for all the species listed shows that annuals dominate and form 54.90% (56 species). Perennial weeds are well represented (31 species), as well as the presence of biennials (15 species). Species whose frequency is between 40 and 60% are three species. While five species have a frequency between 20 and 40%, the frequency <20% contains most of the species 95 or 93.13% of the total specific numberenArticle