Epilobium hirsutum L., 1753 41% complete

Great willowherb

Sp. Pl.: 347 (1753)

Data sources

Each value Trefle shows for Epilobium hirsutum, 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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Sourced8 Differs from sources4 Source not recorded13 Not on the record7 Sources: TRY Plant Trait Database
Field Shown What the sources say
Core
Author L. No source recorded
Source not recorded
Bibliography Sp. Pl.: 347 (1753) 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 1753 No source recorded
Source not recorded
Descriptive
Common name Great willowherb No source recorded
Source not recorded
Observations Temp. Eurasia to Africa No source recorded
Source not recorded
Morphology
Average height 133 cm
  • 133.07 cm · TRY Plant Trait Database · Measured · 24 observations · 2026-10-09
    TRY 7.0 datasets 25, 28, 60, 86, 164, 174, 178, 500, 617, 706, 882, 897
Differs from sources
Biological type hemicryptophyte
  • hemicryptophyte · TRY Plant Trait Database · Measured · 12 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 164, 174, 175, 178, 350, 500, 918
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
Inflorescence type empty Not on the record
Maximum height 215 cm
  • 215 cm · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09
    TRY 7.0 datasets 25, 28, 60, 86, 164, 174, 178, 500, 617, 706, 882, 897
Sourced
Vegetable false No source recorded
Source not recorded
Phenology
Bloom months jun, jul, aug, sep Differs from sources
Duration perennial
  • perennial · TRY Plant Trait Database · Measured · 16 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 86, 110, 164, 175, 178, 460, 882, 918
Sourced
Ecology
Atmospheric humidity 8 / 9 · very humid air No source recorded
Source not recorded
Ground humidity empty
  • 8 / 12 · very wet, flooded several months a year (hydrophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
Not on the record
Light 7 / 9 · half-light to light
  • 7 / 9 · half-light to light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
Sourced
Nitrogen fixation None
  • None · TRY Plant Trait Database · Measured · 14 observations · 2026-10-09
    TRY 7.0 datasets 20, 37, 57, 71, 89, 110, 444, 445
Sourced
Ph maximum pH 8 No source recorded
Source not recorded
Ph minimum pH 7.5 No source recorded
Source not recorded
Soil nutriments 8 / 9 · very rich (pereutrophic)
  • 8 / 9 · very rich (pereutrophic) · 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
  • 1 / 9 · barely saline (hyperoligohaline) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 242
Differs from sources
Usda legacy
C n ratio empty Not on the record
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