Data sources

Each value Trefle shows for Quercus pyrenaica, 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 Source not recorded8 Not on the record3 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	Willd.	No source recorded	Source not recorded
Bibliography	Sp. Pl. ed. 4. 4: 451 (1805)	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	1805	No source recorded	Source not recorded
Descriptive
Common name	Pyrenean oak	No source recorded	Source not recorded
Observations	SW. Europe to Italy, Morocco	No source recorded	Source not recorded
Morphology
Average height	131 cm	131 cm · TRY Plant Trait Database · Measured · 203 observations · 2026-10-09 TRY 7.0 datasets 68, 186, 251, 431, 474, 591, 708, 873	Sourced
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 460, 818	Sourced
Ecology
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 11 observations · 2026-10-09 TRY 7.0 datasets 20, 57, 89, 110, 444, 822	Sourced
Cultivation
Minimum root depth	empty	60 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 432	Not on the record
Usda legacy
C n ratio	empty	22.4 · TRY Plant Trait Database · Measured · 30 observations · 2026-10-09 TRY 7.0 datasets 591	Not on the record
Other
Human usage type	—	ornamental · TRY Plant Trait Database · Reported · 1 observation · 2026-10-09 TRY 7.0 datasets 68	Not on the record

Quercus pyrenaica Willd., 1805 12% complete

Pyrenean oak

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

Data sources