Woody vegetation analysis was made along eastern Rift Valley escarpment in Wello. The studyrnwas earned out based on preferential sampling of the vegetation by establishing seventy 20 X 20 mrnreleves. A total of 216 species belonging to 62 families were identified and described. Out ofrnthese, 104 woody species and succulents were used for vegetation classification. Two-wayrnIndicator Species Analysis (TWINSPAN ) classified the vegetation into seven woody vegetationrntypes , These are: Dodonaea angustifolia Type (I), Enclea schimperi ssp. racemosa-Acacia lahai-rnDichrostachys cinerea Type (II), Cadia purpurea-Euclea schimperi ssp, racemosa-Enphorbiarncandelabrum Type (III), Acacia asak-Grewia bicolor-Sansevieria ehrenbergii Type (IV), Ximeniarnamericana-Acacia asak Type ( V), Acacia mellifera-A. oerfota Type (VI), and Prosopis julijlorarnType (VII). Woody species were counted and later the relative density and importance value indexrnof the dominant woody species was calculated. Endemic and invasive species were identified.rnThe diversity and evenness of each community was compared using Shannon-Weiner diversity andrnevenness index. Correlation of different environmental factors with the community types wasrnmade using Pearson 's coefficient and Tukey's HSD family error test. The interrelationships amongrnenvironmental variables were analyzed. The results of species diversity showed that communitiesrnat the high altitudes are species rich while richness decreases down elevation gradient. Altitudernand slope were found to be the most important environmental factors in determining therndistribution and composition of species along communities. Most of the vegetation was foundrnhighly disturbed except along inaccessible steep slopes, few protected and privately owned areasrnindicating some implications of conservation and management .rnKeywords: Environmental variables , Plant communities, Releves, TWINSPAN