Chamerion angustifolium - Rosebay Willowherb - (Onograceae)

This tall flower, also referred to as fireweed, is equally at home on wasteland, heath and marshy riverbanks. It generally grows in large clumps, often lining the roadside in bright pink late in the summer. The name fireweed refers to its readiness to colonise sites that have been burnt out, and it was a common sight during WWI and WWII on bombsites.

Rosebay Willowherb

There are many other members of the willow-herb family including Great Willow-herb, another large variety, and Marsh Willow-herb, which is a much smaller and more delicate species.