Data sources

Each value Trefle shows for Tsuga heterophylla, 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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Sourced9 Source not recorded16 Not on the record10 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	(Raf.) Sarg.	No source recorded	Source not recorded
Bibliography	Silva N. Amer. 12: 78 (1898)	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	1898	No source recorded	Source not recorded
Descriptive
Common name	Pacific hemlock	No source recorded	Source not recorded
Family common name	Pine family	No source recorded	Source not recorded
Observations	S. Alaska to N. California	No source recorded	Source not recorded
Morphology
Average height	2095 cm	2095 cm · TRY Plant Trait Database · Measured · 254 observations · 2026-10-09 TRY 7.0 datasets 28, 48, 68, 92, 178, 431, 673, 742, 873, 909	Sourced
Biological type	empty	phanerophyte · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Flower conspicuous	false	No source recorded	Source not recorded
Foliage color	green	green · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Foliage texture	fine	fine · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Fruit color	brown	brown · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Fruit conspicuous	false	No source recorded	Source not recorded
Growth form	Single Stem	No source recorded	Source not recorded
Growth habit	Tree	No source recorded	Source not recorded
Growth rate	Slow	Slow · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Maximum height	6300 cm	6300 cm · TRY Plant Trait Database · Measured · 10 observations · 2026-10-09 TRY 7.0 datasets 28, 48, 68, 92, 178, 431, 673, 742, 873, 909	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	perennial	perennial · TRY Plant Trait Database · Measured · 9 observations · 2026-10-09 TRY 7.0 datasets 28, 48, 92, 178, 818	Sourced
Ecology
Ground humidity	empty	6 / 12 · moist (meso-hygrophilous) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Light	empty	6 / 9 · half-shade to half-light · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Nitrogen fixation	None	None · TRY Plant Trait Database · Measured · 7 observations · 2026-10-09 TRY 7.0 datasets 57, 67, 71, 89, 94, 445	Sourced
Ph maximum	pH 6	No source recorded	Source not recorded
Ph minimum	pH 4.5	No source recorded	Source not recorded
Soil nutriments	empty	3 / 9 · poor (oligotrophic) · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Soil salinity	empty	0 / 9 · absent from saline soils · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record
Cultivation
Minimum root depth	88 cm	88 cm · TRY Plant Trait Database · Measured · 6 observations · 2026-10-09 TRY 7.0 datasets 92, 432, 818	Sourced
Usda legacy
C n ratio	empty	60.8 · TRY Plant Trait Database · Measured · 13 observations · 2026-10-09 TRY 7.0 datasets 981	Not on the record
Other
Human usage type	—	fuelwood, lumber, nursery_stock, other, pulpwood, timber, veneer · 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	—	Deep · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Soil ph indicator	—	3 · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 178	Not on the record

Tsuga heterophylla (Raf.) Sarg., 1898 41% complete

Pacific hemlock

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

Data sources