Index / Search / Epilobium leptophyllum
§1 Plant
Epilobium leptophyllum Raf.
vernacular bog willowherb — species · Onagraceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Dicot
- Family
- Onagraceae Juss.
- Genus
- Epilobium
§2a
Native status, by region
- AK Alaska Native
- CAN Canada Native
- L48 Lower 48 States Native
- SPM St. Pierre & Miquelon Native
§2b
County-level range
· 145 counties across 13 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Low
- Shade
- Medium
- Moisture use
- High
- Fire
- None
- Salinity
- None
- Anaerobic
- High
- CaCO₃
- Low
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -33 °F minimum
- Frost-free days
- 80 min.
- Precipitation
- 15–50 in/yr
- pH range
- 4–6.5
- Root depth
- 10 in min.
- Fertility need
- Low
- Soil texture
- medium, fine
§3c
Form & growth
- Growth form
- Single Stem
- Growth rate
- Slow
- Lifespan
- Moderate
- Mature height
- 3.6 ft
- Foliage texture
- Medium
- Foliage colour
- Green
- Porosity (summer)
- Moderate
- Porosity (winter)
- Porous
- Flower colour
- Red
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Summer
- Seed abundance
- Medium
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Slow
- Stratify
- No
- Seeds / lb
- 3,000,000
- Propagation
- seed, bare root
§3e
Use & availability
- Commercial availability
- No Known Source
- Nursery stock
- No
- Browse palatability
- Medium
- Graze palatability
- Medium
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 145 counties across 13 states/territories.
Alaska view state ↗ 1 N ▾
Maine view state ↗ 13 N ▾
Maryland view state ↗ 3 N ▾
Massachusetts view state ↗ 14 N ▾
Montana view state ↗ 4 N ▾
New Hampshire view state ↗ 6 N ▾
New Jersey view state ↗ 7 N ▾
New York view state ↗ 43 N ▾
- Albany 36001
- Bronx 36005
- Cattaraugus 36009
- Chemung 36015
- Columbia 36021
- Delaware 36025
- Dutchess 36027
- Erie 36029
- Essex 36031
- Franklin 36033
- Fulton 36035
- Greene 36039
- Hamilton 36041
- Herkimer 36043
- Jefferson 36045
- Lewis 36049
- Madison 36053
- Monroe 36055
- Nassau 36059
- New York 36061
- Oneida 36065
- Onondaga 36067
- Ontario 36069
- Orange 36071
- Oswego 36075
- Otsego 36077
- Putnam 36079
- Queens 36081
- Richmond 36085
- Rockland 36087
- Saratoga 36091
- Schenectady 36093
- Schoharie 36095
- Seneca 36099
- St. Lawrence 36089
- Suffolk 36103
- Sullivan 36105
- Tioga 36107
- Ulster 36111
- Warren 36113
- Washington 36115
- Wayne 36117
- Westchester 36119
Pennsylvania view state ↗ 32 N ▾
- Bedford 42009
- Berks 42011
- Bradford 42015
- Bucks 42017
- Centre 42027
- Chester 42029
- Clearfield 42033
- Clinton 42035
- Crawford 42039
- Delaware 42045
- Elk 42047
- Erie 42049
- Jefferson 42065
- Lackawanna 42069
- Lancaster 42071
- Lawrence 42073
- Lebanon 42075
- Lehigh 42077
- Luzerne 42079
- Mifflin 42087
- Monroe 42089
- Montgomery 42091
- Northampton 42095
- Philadelphia 42101
- Pike 42103
- Potter 42105
- Schuylkill 42107
- Somerset 42111
- Sullivan 42113
- Tioga 42117
- Warren 42123
- Wayne 42127
Rhode Island view state ↗ 2 N ▾
Vermont view state ↗ 7 N ▾
Virginia view state ↗ 6 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/EPLE2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3189116 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T05:06:36Z