In this study, the ground layer species growing in altitudinal zones from sea level to high mountains were investigated according to their distribution, floristic composition and some habitat characteristics in the province of Trabzon in the north-eastern Black Sea region. Surveyed over four growing seasons (1994-1997), 285 taxa from 44 families were recorded in the De¤irmendere and Solakli Çayi river basins in Trabzon. | A study on the ground layer species composition in rocky, roadside and forest habitats in Trabzon province
