Data sources

Each value Trefle shows for Euphrasia officinalis subsp. officinalis, 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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Sourced4 Source not recorded6 Not on the record2 Sources: TRY Plant Trait Database, GBIF

Field	Shown	What the sources say
Core
Bibliography	L. (1753). In: Sp. Pl. 604.	L. (1753). In: Sp. Pl. 604. · GBIF · Reported · 2026-09-05 1 earlier or rejected value Superseded L. (1753). In: Sp. Pl. 604. · GBIF · Reported · 2026-09-05	Sourced
Phylum	Tracheophyta	Tracheophyta · GBIF · Reported · 2026-09-05	Sourced
Rank	ssp	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	Rostkov's eyebright	No source recorded	Source not recorded
Observations	Finland to W. Siberia	No source recorded	Source not recorded
Morphology
Average height	empty	22.5 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 918	Not on the record
Biological type	therophyte	therophyte · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 918	Sourced
Sexuality	hermaphrodite	hermaphrodite · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 365	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	empty	annual · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 918	Not on the record

Euphrasia officinalis subsp. officinalis 1753 10% complete

Rostkov's eyebright

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

Data sources