Epilobium angustifolium L., 1753 35% complete

Rosebay willowherb

Sp. Pl.: 347 (1753)

Data sources

Each value Trefle shows for Epilobium angustifolium, 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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Sourced9 Differs from sources4 Source not recorded8 Not on the record11 Sources: TRY Plant Trait Database, Earlier Trefle data
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
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 Rosebay willowherb No source recorded
Source not recorded
Observations Temp. Northern Hemisphere to NE. Mexico, Morocco No source recorded
Source not recorded
Morphology
Average height 97 cm
  • 97.19 cm · TRY Plant Trait Database · Measured · 20 observations · 2026-10-09
    TRY 7.0 datasets 1, 86, 92, 116, 174, 178, 251, 256, 517, 706, 917, 918
2 earlier or rejected values
  • Superseded 97.19 cm · TRY Plant Trait Database · Measured · 20 observations · 2026-10-09
    TRY 7.0 datasets 1, 86, 92, 116, 174, 178, 251, 256, 517, 706, 917, 918
  • Superseded 97.19 cm · TRY Plant Trait Database · Measured · 20 observations · 2026-09-17
    TRY 7.0 datasets 1, 86, 92, 116, 174, 178, 251, 256, 517, 706, 917, 918
Differs from sources
Biological type hemicryptophyte
  • hemicryptophyte · TRY Plant Trait Database · Measured · 9 observations · 2026-10-09
    TRY 7.0 datasets 84, 174, 178, 918
2 earlier or rejected values
  • Superseded hemicryptophyte · TRY Plant Trait Database · Measured · 9 observations · 2026-10-09
    TRY 7.0 datasets 84, 174, 178, 918
  • Superseded hemicryptophyte · TRY Plant Trait Database · Measured · 9 observations · 2026-09-17
    TRY 7.0 datasets 84, 174, 178, 918
Sourced
Flower color purple
2 earlier or rejected values
Sourced
Foliage color empty
2 earlier or rejected values
Not on the record
Foliage texture empty
2 earlier or rejected values
Not on the record
Fruit color empty
2 earlier or rejected values
Not on the record
Growth rate empty
2 earlier or rejected values
Not on the record
Maximum height empty
  • 150 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 1, 86, 92, 116, 174, 178, 251, 256, 517, 706, 917, 918
2 earlier or rejected values
  • Superseded 150 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 1, 86, 92, 116, 174, 178, 251, 256, 517, 706, 917, 918
  • Superseded 150 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-09-17
    TRY 7.0 datasets 1, 86, 92, 116, 174, 178, 251, 256, 517, 706, 917, 918
Not on the record
Vegetable false No source recorded
Source not recorded
Phenology
Bloom months jun, jul, aug, sep
3 earlier or rejected values
Differs from sources
Duration perennial
  • perennial · TRY Plant Trait Database · Measured · 10 observations · 2026-10-09
    TRY 7.0 datasets 1, 86, 92, 110, 178, 460, 818, 918
2 earlier or rejected values
  • Superseded perennial · TRY Plant Trait Database · Measured · 10 observations · 2026-10-09
    TRY 7.0 datasets 1, 86, 92, 110, 178, 460, 818, 918
  • Superseded perennial · TRY Plant Trait Database · Measured · 10 observations · 2026-09-17
    TRY 7.0 datasets 1, 86, 92, 110, 178, 460, 818, 918
Sourced
Ecology
Atmospheric humidity 5 / 9 · medium air humidity
  • 5 / 9 · medium air humidity · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Ground humidity empty
  • 5 / 12 · fresh, never flooded (mesohydric) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
2 earlier or rejected values
  • Superseded 5 / 12 · fresh, never flooded (mesohydric) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
  • Superseded 5 / 12 · fresh, never flooded (mesohydric) · TRY Plant Trait Database · Measured · 1 observation · 2026-09-17
    TRY 7.0 datasets 178
Not on the record
Light 5 / 9 · half-shade
  • 6 / 9 · half-shade to half-light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
2 earlier or rejected values
  • Superseded 6 / 9 · half-shade to half-light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
  • Superseded 6 / 9 · half-shade to half-light · TRY Plant Trait Database · Measured · 1 observation · 2026-09-17
    TRY 7.0 datasets 178
Differs from sources
Nitrogen fixation None
2 earlier or rejected values
  • Superseded None · TRY Plant Trait Database · Measured · 15 observations · 2026-10-09
    TRY 7.0 datasets 1, 37, 57, 89, 444
  • Superseded None · TRY Plant Trait Database · Measured · 15 observations · 2026-09-17
    TRY 7.0 datasets 1, 37, 57, 89, 444
Sourced
Ph maximum pH 5.5
  • pH 5.5 · Earlier Trefle data · Inferred · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded derived from a Baseflor soil reaction class by the 2022 import, a class not a measurement
Sourced
Ph minimum pH 5
  • pH 5 · Earlier Trefle data · Inferred · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded derived from a Baseflor soil reaction class by the 2022 import, a class not a measurement
Sourced
Soil nutriments 7 / 9 · rich (eutrophic)
  • 5 / 9 · intermediate (mesotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
2 earlier or rejected values
  • Superseded 5 / 9 · intermediate (mesotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
  • Superseded 5 / 9 · intermediate (mesotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-09-17
    TRY 7.0 datasets 178
Differs from sources
Soil salinity 0 / 9 · absent from saline soils
  • 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
2 earlier or rejected values
  • Superseded 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
  • Superseded 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 1 observation · 2026-09-17
    TRY 7.0 datasets 178
Sourced
Cultivation
Minimum root depth 23 cm
2 earlier or rejected values
  • Superseded 23 cm · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09
    TRY 7.0 datasets 92, 339, 517, 818
  • Superseded 23 cm · TRY Plant Trait Database · Measured · 8 observations · 2026-09-17
    TRY 7.0 datasets 92, 339, 517, 818
Sourced
Usda legacy
C n ratio empty
2 earlier or rejected values
Not on the record
Other
Propagation method —
2 earlier or rejected values
  • Superseded seed, vegetative · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09
    TRY 7.0 datasets 92, 174
  • Superseded seed, vegetative · TRY Plant Trait Database · Measured · 4 observations · 2026-09-17
    TRY 7.0 datasets 92, 174
Not on the record
Salt tolerance —
2 earlier or rejected values
Not on the record
Shade tolerance —
2 earlier or rejected values
Not on the record
Soil ph indicator —
2 earlier or rejected values
Not on the record