Chamerion angustifolium

Family (Traditional)Onagraceae
Species:Chamerion angustifolium (L.) Holub
Common NameFireweed
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Mesic; Region of Origin: North America; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Leaf Arrangement: alternate; Leaf Arrangement: opposite; Leaf Arrangement: subopposite; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Type: broadleaf; Leaflet Number: 0; Anther Type: Dorsifixed; Base Flower Color: Pink; Base Flower Color: Purple; Carpel Number/Pistil: 4; Fruit Dehiscence: Yes; Fruit Type: Capsule; Fruit Wet/Dry: Dry; Ovary Position: Inferior; Overall Flower Symmetry: Actinomorphic; Pistil Number: 1; Placentation Type: Axillary; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 8
C value 3
StatusNative; TN[S1] KY[SNR] (State Rank); G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Currently no photos are available for this plant.

Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

  • State Boundaries
  • Counties
  • Counties - Species Present
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim


SynonymFull Citation
Chamaenerion angustifolium Chamaenerion angustifolium (L.) Scop.
Chamerion angustifolium Chamerion angustifolium (L.) Holub
Chamerion spicatum Chamerion spicatum
Epilobium angustifolium Epilobium angustifolium Lam.
Epilobium angustifolium var. intermedium Epilobium angustifolium var. intermedium Fernald
Epilobium angustifolium var. pygmaeum Epilobium angustifolium var. pygmaeum Jeps.
Epilobium spicatum Epilobium spicatum Lam.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Carter (TN), Fentress (TN), Unicoi (TN)

Herbaria represented by specimen data listed below: ETSU, HTTU, TENN

Range of years during which specimens were collected: -

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
TENN-V-0157302 Carter Tennessee
Chamerion angustifolium
ETSU008573 Unicoi Tennessee
Epilobium angustifolium
HTTU022099 Tennessee
Epilobium angustifolium
HTTU027705 Fentress Tennessee
Epilobium angustifolium
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