Wild Rhubarb

Koenigia alaskana is an Asian and North American species of flowering plant in the buckwheat family known by the common names Alaska wild rhubarb and alpine knotweed. This herbaceous or semi-evergreen perennial grows up to 2 metres tall, with a woody root and lanceolate leaves. The abundant flowers are white, cream or pale green, borne in plumes in midsummer. They are followed by pinkish seed-heads later in summer or in early autumn. However, in a garden setting they are usually cut back after flowering to preserve vigour.

Main Photo Credit: "Wild rhubarb (Koenigia alaskana), Alaska, USA" by Naoki Takebayashi, 2020. CC BY-SA 2.0.

Description: Wikipedia