fireweed

[ fahyuh r-weed ]
/ ˈfaɪərˌwid /

noun

any of various plants appearing in recently burned clearings, as the willow herb, Epilobium angustifolium.

Origin of fireweed

An Americanism dating back to 1775–85; fire + weed1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for fireweed

fireweed

/ (ˈfaɪəˌwiːd) /

noun

any of various plants that appear as first vegetation in burnt-over areas, esp rosebay willowherb
Also called: pilewort a weedy North American plant, Erechtites hieracifolia, having small white or greenish flowers: family Asteraceae (composites)
an Australian rainforest tree, Stenocarpus sinuatus, having whorls of bright red flowers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012