Data sources

Each value Trefle shows for Corylus americana, 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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Sourced5 Source not recorded8 Not on the record9 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	Walter	No source recorded	Source not recorded
Bibliography	Fl. Carol.: 236 (1788)	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	1788	No source recorded	Source not recorded
Descriptive
Common name	American hazelnut	No source recorded	Source not recorded
Observations	Canada to NC. & E. U.S.A.	No source recorded	Source not recorded
Morphology
Average height	109 cm	109 cm · TRY Plant Trait Database · Measured · 25 observations · 2026-10-09 TRY 7.0 datasets 28, 92, 335, 925	Sourced
Biological type	phanerophyte	phanerophyte · TRY Plant Trait Database · Measured · 183 observations · 2026-10-09 TRY 7.0 datasets 925	Sourced
Flower color	empty	white · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Foliage color	empty	green · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Foliage texture	empty	coarse · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Fruit color	empty	brown · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Growth rate	empty	Moderate · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 188 observations · 2026-10-09 TRY 7.0 datasets 92, 460, 818, 925	Sourced
Ecology
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 5 observations · 2026-10-09 TRY 7.0 datasets 20, 57, 96, 444, 822	Sourced
Cultivation
Minimum root depth	351 cm	351 cm · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 92, 432, 818	Sourced
Usda legacy
C n ratio	empty	20 · TRY Plant Trait Database · Measured · 51 observations · 2026-10-09 TRY 7.0 datasets 70	Not on the record
Other
Human usage type	—	berries_nuts_seeds, nursery_stock · TRY Plant Trait Database · Reported · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Salt tolerance	—	None · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Shade tolerance	—	Intermediate · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record

Corylus americana Walter, 1788 16% complete

American hazelnut

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Data sources