Data sources

Each value Trefle shows for Euphrasia tetraquetra, 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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Sourced3 Differs from sources1 Source not recorded10 Not on the record9 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	(Bréb.) Arrond.	No source recorded	Source not recorded
Bibliography	Bull. Soc. Archéol. Morbihan, Mém. Procès-Verbaux 1862: 96 (1862)	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	1862	No source recorded	Source not recorded
Descriptive
Observations	Ireland, Great Britain, NW. France	No source recorded	Source not recorded
Morphology
Average height	18 cm	17.5 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 25, 174, 178	Differs from sources
Biological type	therophyte	therophyte · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09 TRY 7.0 datasets 174, 178	Sourced
Flower color	white	No source recorded	Source not recorded
Growth habit	Forb/herb	No source recorded	Source not recorded
Maximum height	empty	15 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 25, 174, 178	Not on the record
Sexuality	empty	hermaphrodite · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 365	Not on the record
Vegetable	false	No source recorded	Source not recorded
Phenology
Bloom months	jan	jan · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 174	Sourced
Duration	empty	annual · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Ecology
Ground humidity	empty	6 / 12 · moist (meso-hygrophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Light	8 / 9 · light	8 / 9 · light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Sourced
Soil nutriments	empty	3 / 9 · poor (oligotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Soil salinity	empty	3 / 9 · slightly saline (oligohaline) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Other
Propagation method	—	seed · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Shade tolerance	—	None · TRY Plant Trait Database · Measured · 8 observations · 2026-10-09 TRY 7.0 datasets 174	Not on the record
Soil ph indicator	—	6 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record

Euphrasia tetraquetra (Bréb.) Arrond., 1862 18% complete

No common name

Data sources

Euphrasia tetraquetra (Bréb.) Arrond., 1862 18% complete

No common name

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

Data sources