Epilobium ciliatum Raf., 1808 43% complete

American willowherb

Med. Repos. 2(5): 361 (1808)

Data sources

Each value Trefle shows for Epilobium ciliatum, with what every source says about it. When sources disagree, the strongest source is shown (how sources are ranked). Values imported before sources were recorded one by one are marked Source not recorded.

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Sourced11 Differs from sources2 Source not recorded13 Not on the record6 Sources: TRY Plant Trait Database
Field Shown What the sources say
Core
Author Raf. No source recorded
Source not recorded
Bibliography Med. Repos. 2(5): 361 (1808) No source recorded
Source not recorded
Phylum Tracheophyta No source recorded
Source not recorded
Rank species No source recorded
Source not recorded
Status accepted No source recorded
Source not recorded
Year 1808 No source recorded
Source not recorded
Descriptive
Common name American willowherb No source recorded
Source not recorded
Observations Temp. Northern Hemisphere to Guatemala, S. South America No source recorded
Source not recorded
Morphology
Average height 75 cm
  • 75 cm · TRY Plant Trait Database · Measured · 9 observations · 2026-10-09
    TRY 7.0 datasets 25, 116, 174, 178, 468, 882
Sourced
Biological type hemicryptophyte
  • hemicryptophyte · TRY Plant Trait Database · Measured · 7 observations · 2026-10-09
    TRY 7.0 datasets 4, 71, 174, 178
Sourced
Flower color purple Differs from sources
Foliage texture medium Sourced
Fruit shape capsule Sourced
Growth habit Forb/herb No source recorded
Source not recorded
Maximum height 115 cm
  • 115 cm · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09
    TRY 7.0 datasets 25, 116, 174, 178, 468, 882
Sourced
Sexuality empty Not on the record
Vegetable false No source recorded
Source not recorded
Phenology
Bloom months feb, jun Sourced
Duration annual, perennial
  • annual, perennial · TRY Plant Trait Database · Measured · 14 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 178, 882
Sourced
Fruit months empty
  • jan, feb, mar, apr, may, sep, oct, nov, dec · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 882
Not on the record
Ecology
Atmospheric humidity 6 / 9 · moderately humid air No source recorded
Source not recorded
Ground humidity 6 / 12 · moist (meso-hygrophilous)
  • 6 / 12 · moist (meso-hygrophilous) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 178, 242
Sourced
Light 5 / 9 · half-shade
  • 7 / 9 · half-light to light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
Differs from sources
Nitrogen fixation None Sourced
Ph maximum pH 7 No source recorded
Source not recorded
Ph minimum pH 6.5 No source recorded
Source not recorded
Soil nutriments 7 / 9 · rich (eutrophic)
  • 7 / 9 · rich (eutrophic) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 178, 242
Sourced
Soil salinity 0 / 9 · absent from saline soils
  • 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09
    TRY 7.0 datasets 174, 178, 242
Sourced
Other
Propagation method — Not on the record
Shade tolerance — Not on the record
Soil ph indicator — Not on the record
Temperature indicator — Not on the record