Redshank growing on the edge of a field near Great Easton, in Leicestershire, England.
The Redshank (Persicaria maculosa, formerly Polygonum persicaria) is a perennial plant from the Knotweed family Polygonaceae. It is also called Persicaria, Redleg, Lady's-thumb, Spotted Ladysthumb, Gambetta, and Adam's Plaster in Newfoundland.
It grows up to 1m high, and has narrow, lancet-shaped leaves 8–10cm long. The leaves often have a brown or black spot. The white, pink or red flowers are in dense panicles and flower from early summer to late autumn.
It is native to Europe and Asia, where it can be mistaken for Polygonum minus, but P. minus has narrower leaves, usually less than 1cm wide, while its ear is slimmer.
Description adapted from Wikipedia: http://en.wikipedia.org/wiki/Persicaria_maculosa
+20 clarity in ACR