Data sources

Each value Trefle shows for Dryopteris intermedia, 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.

Something wrong? Suggest a correction.

Sourced2 Differs from sources1 Source not recorded8 Not on the record1 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	A.Gray	No source recorded	Source not recorded
Bibliography	Manual: 630 (1848)	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	1848	No source recorded	Source not recorded
Descriptive
Common name	Evergreen wood fern	No source recorded	Source not recorded
Observations	E. Canada to NC. & E. U.S.A., Macaronesia	No source recorded	Source not recorded
Morphology
Average height	30 cm	29.5 cm · TRY Plant Trait Database · Measured · 17 observations · 2026-10-09 TRY 7.0 datasets 592, 925	Differs from sources
Biological type	hemicryptophyte	hemicryptophyte · TRY Plant Trait Database · Measured · 104 observations · 2026-10-09 TRY 7.0 datasets 925	Sourced
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 104 observations · 2026-10-09 TRY 7.0 datasets 925	Sourced
Usda legacy
C n ratio	empty	18.6 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 412	Not on the record

Dryopteris intermedia A.Gray, 1848 12% complete

Evergreen wood fern

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

Data sources