Data sources

Each value Trefle shows for Alnus alnobetula subsp. crispa, 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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Sourced7 Source not recorded13 Not on the record6 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	(Aiton) Raus	No source recorded	Source not recorded
Bibliography	Willdenowia 41: 129 (2011)	No source recorded	Source not recorded
Rank	ssp	No source recorded	Source not recorded
Status	accepted	No source recorded	Source not recorded
Year	2011	No source recorded	Source not recorded
Descriptive
Observations	Subarctic America to North Carolina	No source recorded	Source not recorded
Morphology
Average height	140 cm	140 cm · TRY Plant Trait Database · Measured · 56 observations · 2026-10-09 TRY 7.0 datasets 28, 68, 73, 92, 251, 468, 909	Sourced
Flower color	empty	yellow · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Flower conspicuous	false	No source recorded	Source not recorded
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	medium	medium · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Fruit color	empty	brown · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Fruit conspicuous	false	No source recorded	Source not recorded
Growth form	Thicket Forming	No source recorded	Source not recorded
Growth habit	Tree, Shrub	No source recorded	Source not recorded
Growth rate	Moderate	Moderate · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Maximum height	1050 cm	1050 cm · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 28, 68, 73, 92, 251, 468, 909	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 28, 92	Sourced
Ecology
Nitrogen fixation	High	High · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 20, 57, 92	Sourced
Ph maximum	pH 7	No source recorded	Source not recorded
Ph minimum	pH 4.8	No source recorded	Source not recorded
Cultivation
Minimum root depth	40 cm	40 cm · TRY Plant Trait Database · Measured · 3 observations · 2026-10-09 TRY 7.0 datasets 73, 92, 339	Sourced
Other
Human usage type	—	medical · TRY Plant Trait Database · Reported · 1 observation · 2026-10-09 TRY 7.0 datasets 68	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

Alnus alnobetula subsp. crispa (Aiton) Raus, 2011 31% complete

No common name

Data sources

Alnus alnobetula subsp. crispa (Aiton) Raus, 2011 31% complete

No common name

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

Data sources