#green alder

• Green alder — Specific epithet and taxonomic designation used in botany to identify the green alder (Alnus alnobetula), a highly resilient mountain and subalpine shrub with flexible, branched stems. This biological entity serves as an ecological indicator for cold regions, gravelly riverbeds, and steep slopes exposed to avalanches, possessing a unique capacity for nitrogen fixation through bacterial symbiosis.
• Alnus viridis — The scientific name of the green alder, a species of perennial shrub in the Betulaceae family, adapted to cold climates, mountainous, or subarctic zones; it plays a crucial structural ecological role in stabilizing steep soils, preventing erosion, and fixing atmospheric nitrogen through root symbioses.