Centaurea diffusa Lam., 1785 25% complete

Tumble knapweed

Encycl. 1: 675 (1785)

Data sources

Each value Trefle shows for Centaurea diffusa, 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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Sourced7 Source not recorded10 Not on the record10 Sources: TRY Plant Trait Database, Earlier Trefle data
Field Shown What the sources say
Core
Author Lam. No source recorded
Source not recorded
Bibliography Encycl. 1: 675 (1785) 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 1785 No source recorded
Source not recorded
Descriptive
Common name Tumble knapweed No source recorded
Source not recorded
Family common name Aster family No source recorded
Source not recorded
Observations Europe to SW. Siberia and Caucasus No source recorded
Source not recorded
Morphology
Average height 35 cm
  • 35 cm · TRY Plant Trait Database · Measured · 44 observations · 2026-10-09
    TRY 7.0 datasets 25, 193, 251, 296, 500, 574, 918
2 earlier or rejected values
  • Superseded 35 cm · TRY Plant Trait Database · Measured · 44 observations · 2026-10-09
    TRY 7.0 datasets 25, 193, 251, 296, 500, 574, 918
  • Superseded 35 cm · TRY Plant Trait Database · Measured · 44 observations · 2026-09-17
    TRY 7.0 datasets 25, 193, 251, 296, 500, 574, 918
Sourced
Biological type hemicryptophyte
  • hemicryptophyte · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 500, 918
2 earlier or rejected values
  • Superseded hemicryptophyte · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 71, 500, 918
  • Superseded hemicryptophyte · TRY Plant Trait Database · Measured · 8 observations · 2026-09-17
    TRY 7.0 datasets 4, 25, 71, 500, 918
Sourced
Flower color white
2 earlier or rejected values
Sourced
Foliage texture empty
2 earlier or rejected values
Not on the record
Fruit shape empty
2 earlier or rejected values
Not on the record
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 empty
  • 50 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 25, 193, 251, 296, 500, 574, 918
2 earlier or rejected values
  • Superseded 50 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 25, 193, 251, 296, 500, 574, 918
  • Superseded 50 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-09-17
    TRY 7.0 datasets 25, 193, 251, 296, 500, 574, 918
Not on the record
Sexuality empty
2 earlier or rejected values
Not on the record
Vegetable false No source recorded
Source not recorded
Phenology
Duration annual, biennial, perennial
  • annual, biennial, perennial · TRY Plant Trait Database · Measured · 66 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 193, 296, 918
2 earlier or rejected values
  • Superseded annual, biennial, perennial · TRY Plant Trait Database · Measured · 66 observations · 2026-10-09
    TRY 7.0 datasets 4, 25, 193, 296, 918
  • Superseded annual, biennial, perennial · TRY Plant Trait Database · Measured · 66 observations · 2026-09-17
    TRY 7.0 datasets 4, 25, 193, 296, 918
Sourced
Ecology
Ground humidity empty
  • 3 / 12 · rather dry (xerophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 242
2 earlier or rejected values
  • Superseded 3 / 12 · rather dry (xerophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 242
  • Superseded 3 / 12 · rather dry (xerophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-09-17
    TRY 7.0 datasets 242
Not on the record
Light empty
2 earlier or rejected values
  • Superseded 9 / 9 · full sun · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 489
  • Superseded 9 / 9 · full sun · TRY Plant Trait Database · Measured · 1 observation · 2026-09-17
    TRY 7.0 datasets 489
Not on the record
Nitrogen fixation None
2 earlier or rejected values
  • Superseded None · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09
    TRY 7.0 datasets 71, 193, 444, 445
  • Superseded None · TRY Plant Trait Database · Measured · 5 observations · 2026-09-17
    TRY 7.0 datasets 71, 193, 444, 445
Sourced
Soil nutriments empty
  • 3 / 9 · poor (oligotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 242
2 earlier or rejected values
  • Superseded 3 / 9 · poor (oligotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09
    TRY 7.0 datasets 242
  • Superseded 3 / 9 · poor (oligotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-09-17
    TRY 7.0 datasets 242
Not on the record
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 242, 489
2 earlier or rejected values
  • Superseded 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09
    TRY 7.0 datasets 242, 489
  • Superseded 0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 2 observations · 2026-09-17
    TRY 7.0 datasets 242, 489
Sourced
Usda legacy
C n ratio empty
2 earlier or rejected values
  • Superseded 23.4 · TRY Plant Trait Database · Measured · 14 observations · 2026-10-09
    TRY 7.0 datasets 193, 296, 412
  • Superseded 23.4 · TRY Plant Trait Database · Measured · 14 observations · 2026-09-17
    TRY 7.0 datasets 193, 296, 412
Not on the record
Other
Soil ph indicator —
2 earlier or rejected values
Not on the record
Temperature indicator —
2 earlier or rejected values
Not on the record