Data sources

Each value Trefle shows for Ilex verticillata, 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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Sourced6 Source not recorded15 Not on the record8 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	(L.) A.Gray	No source recorded	Source not recorded
Bibliography	Manual: 307 (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	Black-alder	No source recorded	Source not recorded
Observations	E. Canada to C. & E. U.S.A.	No source recorded	Source not recorded
Morphology
Average height	250 cm	250 cm · TRY Plant Trait Database · Measured · 29 observations · 2026-10-09 TRY 7.0 datasets 20, 28, 68, 92, 184, 708, 873, 925	Sourced
Biological type	phanerophyte	phanerophyte · TRY Plant Trait Database · Measured · 129 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
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	coarse	coarse · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Fruit color	empty	red · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Fruit conspicuous	true	No source recorded	Source not recorded
Growth form	Multiple Stem	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
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 132 observations · 2026-10-09 TRY 7.0 datasets 28, 92, 759, 925	Sourced
Ecology
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 12 observations · 2026-10-09 TRY 7.0 datasets 20, 57, 67, 94, 444, 445, 822	Sourced
Ph maximum	pH 7.5	No source recorded	Source not recorded
Ph minimum	pH 4.5	No source recorded	Source not recorded
Cultivation
Minimum root depth	empty	41 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Usda legacy
C n ratio	empty	32.3 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 79	Not on the record
Other
Human usage type	—	nursery_stock, ornamental · TRY Plant Trait Database · Reported · 1 observation · 2026-10-09 TRY 7.0 datasets 68, 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

Ilex verticillata (L.) A.Gray, 1848 33% complete

Black-alder

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Data sources