Tragopogon pratensis L., 1753 41% complete

Johnny-go-to-bed-at-noon

Sp. Pl.: 789 (1753)

Data sources

Each value Trefle shows for Tragopogon pratensis, 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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Sourced10 Differs from sources1 Source not recorded14 Not on the record8 Sources: TRY Plant Trait Database
Field Shown What the sources say
Core
Author L. No source recorded
Source not recorded
Bibliography Sp. Pl.: 789 (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 Johnny-go-to-bed-at-noon No source recorded
Source not recorded
Family common name Aster family No source recorded
Source not recorded
Observations Europe to C. Asia and Türkiye No source recorded
Source not recorded
Morphology
Average height 42 cm
  • 41.5 cm · TRY Plant Trait Database · Measured · 58 observations · 2026-10-09
    TRY 7.0 datasets 25, 45, 116, 133, 174, 175, 178, 251, 310, 347, 500, 519, 589, 807, 897
Differs from sources
Biological type hemicryptophyte
  • hemicryptophyte · TRY Plant Trait Database · Measured · 10 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 174, 175, 178, 500, 918
Sourced
Flower color yellow Sourced
Foliage texture empty Not on the record
Fruit shape empty Not on the record
Growth habit Forb/herb No source recorded
Source not recorded
Maximum height 55 cm
  • 55 cm · TRY Plant Trait Database · Measured · 4 observations · 2026-10-09
    TRY 7.0 datasets 25, 45, 116, 133, 174, 175, 178, 251, 310, 347, 500, 519, 589, 807, 897
Sourced
Sexuality empty Not on the record
Vegetable false No source recorded
Source not recorded
Phenology
Bloom months feb, may, jun, jul
  • feb, may, jun, jul · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09
    TRY 7.0 datasets 4, 45, 174, 310
Sourced
Duration biennial, perennial
  • biennial, perennial · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 178, 918, 925
Sourced
Ecology
Atmospheric humidity 5 / 9 · medium air humidity No source recorded
Source not recorded
Ground humidity 5 / 12 · fresh, never flooded (mesohydric)
  • 5 / 12 · fresh, never flooded (mesohydric) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 178, 489
Sourced
Light 8 / 9 · light Sourced
Nitrogen fixation None Sourced
Ph maximum pH 7.5 No source recorded
Source not recorded
Ph minimum pH 7 No source recorded
Source not recorded
Soil nutriments 6 / 9 · rather rich (meso-eutrophic)
  • 6 / 9 · rather rich (meso-eutrophic) · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 178, 489
Sourced
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, 489
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