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any of several plants that spring up in fire-swept regions, especially the great willow herb Epilobium, which is classified in the family Onagraceae (evening primroseevening primrose,
common name for the Onagraceae, a family of plants of worldwide distribution, most species of which grow as herbs in the temperate New World, and specifically for members of the genus Oenothera.
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4-petal pink flowers with thin pointy leaves. Leaf and root used to make tea as anti-inflammatory for digestive, stomach and bowel problems. Young shoots best to eat. There is a different plant also called fireweed- see “Pilewort”
Edible Plant Guide © 2012 Markus Rothkranz
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



(Epilobium angustifolium), a perennial herbaceous plant of the genus Epilobium. The inhabitants of Kopor’e, a village near St. Petersburg, used its leaves for making tea (hence the plant’s Russian common name, koporskii chai).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Species-area relationships of insects on host plants: herbivores on rosebay willowherb. Journal of Animal Ecology 51:207-223.
It is as if some kind of requiem is being prepared by nature to celebrate the memory of a long, hot summer with the purple hues of great swathes of rosebay willowherb swaying beside our roadsides and in our hedgerows.
"Rosebay willowherb is a tall plant producing beautiful purple flowers.
The aim is to remove invasive Rosebay Willowherb from a patch of grassland which is restricting the growth of other plants such as Knapweed, Scabious and Ox-eye Daisies - which attract bees, butterflies and other wildlife.