Crepis biennis L., 1753 35% complete

Rough hawksbeard

Sp. Pl.: 807 (1753)

Data sources

Each value Trefle shows for Crepis biennis, 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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Sourced12 Differs from sources1 Source not recorded9 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.: 807 (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 Rough hawksbeard No source recorded
Source not recorded
Family common name Aster family No source recorded
Source not recorded
Observations Europe No source recorded
Source not recorded
Morphology
Average height 30 cm
  • 29.5 cm · TRY Plant Trait Database · Measured · 100 observations · 2026-10-09
    TRY 7.0 datasets 25, 45, 116, 164, 178, 203, 251, 347, 500, 519, 589, 655, 807, 898, 926
Differs from sources
Biological type hemicryptophyte
  • hemicryptophyte · TRY Plant Trait Database · Measured · 11 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 164, 174, 178, 500, 655, 918
Sourced
Flower color yellow Sourced
Foliage texture medium Sourced
Fruit shape empty Not on the record
Maximum height 100 cm
  • 100 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 25, 45, 116, 164, 178, 203, 251, 347, 500, 519, 589, 655, 807, 898, 926
Sourced
Sexuality empty Not on the record
Phenology
Bloom months feb, may, jun
  • feb, may, jun · TRY Plant Trait Database · Measured · 7 observations · 2026-10-09
    TRY 7.0 datasets 4, 45, 174, 203
Sourced
Duration biennial, perennial
  • biennial, perennial · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09
    TRY 7.0 datasets 4, 71, 164, 178, 818, 918
Sourced
Ecology
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 8 / 9 · light Sourced
Nitrogen fixation None Sourced
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, 242
Sourced
Soil salinity 0 / 9 · absent from saline soils
  • 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 178, 242
Sourced
Cultivation
Minimum root depth 52 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