Thuja occidentalis
(Eastern white cedar)

Pictures

Picture	Title	Caption	Copyright
Title Natural stand Caption Natural stand of T. occidentalis near Hamilton, Ontario, Canada. Such natural stands of open grown trees have branches extending to the ground Copyright Douglas Larson	Natural stand	Natural stand of T. occidentalis near Hamilton, Ontario, Canada. Such natural stands of open grown trees have branches extending to the ground	Douglas Larson
Title Individual tree Caption A 6-m tall open-grown T. occidentalis tree, showing retention of foliage and branches giving the plant a pyramidal appearance. Copyright Douglas Larson	Individual tree	A 6-m tall open-grown T. occidentalis tree, showing retention of foliage and branches giving the plant a pyramidal appearance.	Douglas Larson
Title Inverted ancient T. occidentalis Caption Inverted ancient tree growing on a cliff. Each terminal branch re-asserts growth towards the sun, but rockfall continually undercuts the roots and produces inverted axes. Copyright Douglas Larson	Inverted ancient T. occidentalis	Inverted ancient tree growing on a cliff. Each terminal branch re-asserts growth towards the sun, but rockfall continually undercuts the roots and produces inverted axes.	Douglas Larson
Title Juvenile and mature leaves Caption Juvenile leaves occur in whorls of 4 around the axis of the sapling, while mature scale leaves emerge from lateral meristems. Copyright Douglas Larson	Juvenile and mature leaves	Juvenile leaves occur in whorls of 4 around the axis of the sapling, while mature scale leaves emerge from lateral meristems.	Douglas Larson
Title Mature leaves Caption Mature leaves are scale like, and measure 3-6 mm across and 0.5 mm in thickness. Copyright Douglas Larson	Mature leaves	Mature leaves are scale like, and measure 3-6 mm across and 0.5 mm in thickness.	Douglas Larson
Title Female cones Caption Female cones are produced at the tips of branches. Copyright Douglas Larson	Female cones	Female cones are produced at the tips of branches.	Douglas Larson
Title Cambial mortality Caption Cambial mortality causes stem-strip axial morphology. In cross section as shown in this 935 year old tree, the stem strip growth produces a very small amount of sapwood and grossly asymmetric stem with pith nowhere near the tree centre. Scale bar = 1.0 cm. Copyright Douglas Larson	Cambial mortality	Cambial mortality causes stem-strip axial morphology. In cross section as shown in this 935 year old tree, the stem strip growth produces a very small amount of sapwood and grossly asymmetric stem with pith nowhere near the tree centre. Scale bar = 1.0 cm.	Douglas Larson

Identity

Preferred Scientific Name

• Thuja occidentalis L.

Preferred Common Name

• Eastern white cedar

Variety

• Thuja occidentalis f. buchananii (Spath) Rehder
• Thuja occidentalis f. cristata (Carriere) C. K. Schneid.
• Thuja occidentalis f. filiformis (Beissner) Rehder
• Thuja occidentalis f. lutescens (Beissner) C. K. Schnied.
• Thuja occidentalis f. pendula (Gordon) Beissner

Other Scientific Names

• Thuja occidentalis f. fastigiata (H. Jaeger) Beissner
• Thuja occidentalis f. malonyana C. K. Schneid.
• Thuja occidentalis var. fastigiata (H. Jaeger) Beissner
• Thuja occidentalis var. globosa
• Thuja occidentalis var. nigra L. H. Bailey
• Thuja occidentalis var. pumila
• Thuja occidentalis var. pyramidalis Zederb.

International Common Names

• English: American arborvitae; Eastern arborvitae; Eastern thuja; Northern white cedar
• Spanish: cedro blanco del este; thuja; tuya
• French: cedre blanc; les thuja; thuya du Canada; Thuya occidental
• Russian: tuja zapadnaya

Local Common Names

• Germany: Abendlaendischer Lebensbaum; Amerikanischer Lebensbaum; Lebensbaum
• Italy: thuja; Tuia occidentale
• Netherlands: westerse levensboom
• Sweden: vanlig tuja
• USA: arborvitae; white cedar

EPPO code

• THUOC (Thuja occidentalis)

Trade name

• swamp cedar
• white cedar

Taxonomic Tree

• Domain: Eukaryota
•     Kingdom: Plantae
•         Phylum: Spermatophyta
•             Subphylum: Gymnospermae
•                 Class: Pinopsida
•                     Family: Cupressaceae
•                         Genus: Thuja
•                             Species: Thuja occidentalis

List of Pests

Major host of:

Minor host of:

Wild host of:

Host of (source - data mining):

Uses List

Environmental

• Agroforestry
• Boundary, barrier or support
• Revegetation
• Shade and shelter
• Windbreak

General

• Ornamental

Materials

• Carved material
• Essential oils
• Miscellaneous materials
• Wood/timber

Medicinal, pharmaceutical

• Source of medicine/pharmaceutical
• Traditional/folklore

Wood Products

Boats

Roundwood

• Building poles
• Piles
• Posts
• Stakes
• Transmission poles

Sawn or hewn building timbers

• Exterior fittings
• Fences
• For light construction
• Gates
• Shingles
• Wall panelling

Wood extractives (including oil)

Wood-based materials

• Particleboard
• Waferboard

Woodware

• Musical instruments
• Pencils