Data sources

Each value Trefle shows for Centaurea trichocephala, 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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Sourced2 Source not recorded10 Not on the record2 Sources: TRY Plant Trait Database, Earlier Trefle data

Field	Shown	What the sources say
Core
Author	M.Bieb. ex Willd.	No source recorded	Source not recorded
Bibliography	Sp. Pl., ed. 4, 3: 2286 (1803)	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	1803	No source recorded	Source not recorded
Descriptive
Common name	Feather-head knapweed	No source recorded	Source not recorded
Family common name	Aster family	No source recorded	Source not recorded
Observations	Romania to SW. Siberia and NE. Iran	No source recorded	Source not recorded
Morphology
Average height	empty	30 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 918	Not on the record
Biological type	hemicryptophyte	hemicryptophyte · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 918	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
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	empty	perennial · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 918	Not on the record

Centaurea trichocephala M.Bieb. ex Willd., 1803 14% complete

Feather-head knapweed

.fa-secondary{opacity:.4} Data sources

Data sources