Abstract: In this study we evaluated floristic composition patterns of communities of climbers within ten inventoriescarried out in semideciduous forest fragments of southeastern Brazil. One of the inventories is original, beingcarried out for the present study in Ribeirão Cachoeira forest, Campinas, São Paulo State, Southeastern Brazil. Thisinventory was then pooled together to other nine climbers’ inventories made in other forests of Southeastern Brazilto form a data base, which was examined regarding species richness, similarity, species distribution and climbingmethods. The total number of species obtained was 355, belonging to 145 genera and 43 families. The ten mostdiverse families Bignoniaceae (45 species), Fabaceae (42), Malpighiaceae (36), Asteraceae (31), Apocynaceae(29), Sapindaceae (28), Convolvulaceae (21), Cucurbitaceae (14), Passifloraceae (10), and Euphorbiaceae (8)contributed to 74.4% of the total number of species recorded. The commonest climbing method in the studied siteswas main stem or branch twining, accounting for 178 species or 50.1% of the total, the second commonest wastendril climbing (121 species, 34.1%), and the least, scrambling (56 species, 15.8%). We found a high percentageof exclusive species i.e., those occurring in only one forest site, which accounted for 49.3% of the total recorded.The mean similarity among forest sites (30%) may be considered low. The climbing species contribution to the totalwood plant richness recorded on the forests sites was very high in some of the sites (up to 52.5%). These resultsindicated the importance of climber communities to plant diversity for semideciduous forests in SoutheasternBrazil, enhancing the regional diversity and the conservation value of these forest remnants.Keywords: lianas, climbing mechanism, floristic, similarity, NMS.