Rumex pulcher is a species of flowering plant in the knotweed family known by the common name fiddle dock.

[1][2] It is native to Eurasia and North Africa and it can be found elsewhere, including parts of North America, as an introduced species and a roadside weed.

It is quite variable in appearance, and some authorities divide it into several subspecies that are more or less distinguishable.

In general, it is a perennial herb producing a slender, erect stem from a thick taproot, approaching 70 centimeters in maximum height.

The flower has usually six tepals, the inner three of which are edged with teeth and have tubercles at their centers.