Article

This study explores the rich diversity of Algeria, with a particular focus on the Sidi Bel Abbès region, which is renowned for its floristic richness, its ecological diversity and its phytodiversity. Our research aims to identify and map orchids, which face challenges due to both climate constraints and increasing anthropozoogenic activities impacting their habitats. Between 2015 and 2022, we carried out an extensive orchid inventory, resulting in the observation, identification, and geolocation of 25 species belonging to 4 genera in the study area. Among the orchids, Ophrys species were the most prevalent, with a total of 17 species, including one hybrid, followed by Anacamptis and Orchis, each comprising three species. Himantoglossum was the least represented with only two species recorded. Detailed characterizations and ecological data were established for each species to acquire comprehensive understanding of their habitats and distributions. While some taxa demonstrated widespread distribution across the Sidi Bel Abbès region, others exhibited highly localized occurrences.