Name: Rhodiola flax
Small annual herbaceous plant with an upright, branched, filamentous stem and outstretched branches; leaves opposite, sessile, ovate, acute, with one vein. The flowers are small, white, 4-petaled, collected in bunches at the ends of the branches. Blooms in July-August.
It occurs in damp sandy places, on marshy soil, along the edges of ditches, on the banks of lakes and ponds.
The whole plant is used medicinally. In folk medicine, lotions for sore eyes are made with its decoction.