SimplePlant

Onagraceae

Bog willowherb

Epilobium leptophyllum Raf.

Family
Onagraceae
Genus
Epilobium

Pet and kid safety: not checked yet. Check pet-safe plants

Bog willowherb: Marsh Willow Herb
Photo: Joshua Mayer, CC BY-SA 2.0, from Wikimedia Commons

Is yours looking unwell? Scan your plant — free

Common names

By language (1)
English
Bog willowherb

Synonyms

  • Epilobium densum var. nesophilum Fernald
  • Epilobium leptophyllum f. leptophyllum
  • Epilobium leptophyllum f. umbrosum (Hausskn.) Fernald
  • Epilobium lineare f. umbrosum Hausskn.
  • Epilobium nesophilum (Fernald) Fernald
  • Epilobium oliganthum var. gracile Farw.
  • Epilobium palustre var. gracile (Farw.) Dorn
  • Epilobium rosmarinifolium Pursh
  • Epilobium squamatum Nutt.
  • Epilobium squamatum Nutt. ex Pursh
  • Epilobium tenellum Raf.

Flowers

Flower colour
red (USDA PLANTS Database)

Characteristics

Growth habit
Forb/herb
Lifespan
Perennial
In the US and Canada
Alaska: native, Canada: native, Lower 48 states: native, St. Pierre and Miquelon: native

Photos

More in Epilobium

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.