Verbascum thapsus L., 1753 43% complete

Common mullein

Sp. Pl.: 177 (1753)

Data sources

Each value Trefle shows for Verbascum thapsus, 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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Sourced16 Differs from sources1 Source not recorded9 Not on the record7 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.: 177 (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 Common mullein No source recorded
Source not recorded
Observations Azores, Europe to Siberia and Himalaya No source recorded
Source not recorded
Morphology
Average height 82 cm
  • 82 cm · TRY Plant Trait Database · Measured · 69 observations · 2026-10-09
    TRY 7.0 datasets 7, 25, 66, 116, 174, 175, 178, 193, 251, 415, 468, 500, 520, 569, 818, 866, 882, 918
Sourced
Biological type hemicryptophyte
  • hemicryptophyte · TRY Plant Trait Database · Measured · 12 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 174, 175, 178, 500, 918
Sourced
Flower color yellow Sourced
Foliage texture medium Sourced
Fruit shape capsule Sourced
Growth habit Forb/herb
  • Forb/herb · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Maximum height 175 cm
  • 175 cm · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09
    TRY 7.0 datasets 7, 25, 66, 116, 174, 175, 178, 193, 251, 415, 468, 500, 520, 569, 818, 866, 882, 918
Sourced
Sexuality empty Not on the record
Vegetable false No source recorded
Source not recorded
Phenology
Bloom months may, jun, jul
  • may, jun, jul · TRY Plant Trait Database · Measured · 55 observations · 2026-10-20
    TRY 7.0 datasets 4, 163, 174, 415
1 earlier or rejected value
  • Superseded feb, may, jun, jul · TRY Plant Trait Database · Measured · 55 observations · 2026-10-09
    TRY 7.0 datasets 4, 163, 174, 415
Sourced
Duration annual, biennial, perennial
  • annual, biennial, perennial · TRY Plant Trait Database · Measured · 10 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 28, 71, 110, 178, 193, 759, 818, 882, 918
Sourced
Ecology
Atmospheric humidity 4 / 9 · moderately dry air
  • 4 / 9 · moderately dry air · Earlier Trefle data · Reported · 2026-10-19
    value present before provenance tracking (2022 import), no source recorded
Sourced
Ground humidity empty
  • 4 / 12 · moderately dry (meso-xerophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 178
Not on the record
Light 8 / 9 · light Sourced
Nitrogen fixation None
  • None · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09
    TRY 7.0 datasets 20, 57, 71, 193, 444, 445
Sourced
Ph maximum pH 7.5
  • pH 7.5 · 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 7
  • pH 7 · 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)
  • 6 / 9 · rather rich (meso-eutrophic) · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09
    TRY 7.0 datasets 178, 242, 489
Differs from sources
Soil salinity 0 / 9 · absent from saline soils
  • 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09
    TRY 7.0 datasets 178, 242, 489
Sourced
Cultivation
Minimum root depth 35 cm Sourced
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