Fireweed (disambiguation)
Fireweed (Epilobium angustifolium or Chamaenerion angustifolium) is a perennial herbaceous plant in the willowherb family (Onagraceae).
Fireweed: may also refer to:
Plants
- A species of plant in the genus Chamaenerion
 - A common name for Erechtites hieraciifolius, a plant in the sunflower family
 - A common name for Senecio madagascariensis in Australia and Hawaii
 - Crassocephalum crepidioides (ebolo), an annual herbaceous plant in the sunflower family (Asteraceae)
 - Mexican fireweed, Bassia scoparia, a shrub in family Amaranthaceae
 - Apalochlamys spectabilis, a plant in the family Asteraceae, from Australia
 - A folk name for dodder
 - Chamaenerion latifolium, known as dwarf fireweed
 
Other uses
- Aglaophenia cupressina, a hydrozoa
 - Lyngbya majuscula, a cyanobacterium
 - Fireweed (periodical), a feminist literary magazine founded in Toronto, Canada, in 1978