snake-root knotgrass, valeriana and other flowers in zrug gorge in the summer. russia, north ossetia, central caucasus

alania alpine bistort bistorta cancer caprifoliaceae caucasus central cervical cloudy district drug english european flowers gorge grass green herbaceous herbs knotgrass landscape meadow mountain nature nobody north officinalis ossetia overcast polygonaceae polygonum root russia serpent serpentary slope snake snakeroot snakeweed summer unexplored upper valerian valerianoideae white zgur zgurskoye