Polygonum humifusum
Polygonum humifusum is a species of Asian and North American flowering plant in the buckwheat family, Polygonaceae.
It grows in arctic and subarctic regions of eastern Russia, Mongolia, northeastern China, Alaska, and Canada.
Polygonum humifusum is a branching herb with erect or reclining stems up to 30 cm tall. Flowers are green, pink, or white, produced in groups of 2–5. It grows in fields and on riverbanks at elevations less than 400 m.