Parnassia palustris L., Grass-of-Parnassus, a Holarctic riparian species.

Swamped old quarry on the Gazimurskii Mt. Range on a left tributary of the Budyumkan River about 30 km upstream of the village Budyumkan, Gazimurskozavodskoi District, E Chita Province, E Transbaikalia, Siberia, Russia. 4th August 1997. O. Kosterin.