Thuja occidentalis

Cupressaceae Thuja occidentalis L.

Etymology
Thuja refers to ‘resinous tree’; indicating these trees are quite resinous.
occidentalis refers to ‘from the west’; indicating its western distribution compared to Platycladus orientalis (once called Thuja orientalis).

Colloquial Name
Arborvitae

Distribution

This map shows botanical records (points) for this taxon. By opening the map’s sidebar (collapsed by default) you can toggle visibility or change the basemap. By clicking on records, you reveal more information.

TDWG Codes
7, 71, MAN, 72, NBR, NSC, ONT, PEI, QUE, 74, ILL, MIN, WIS, 75, CNT, INI, MAI, MAS, MIC, NWH, NWY, OHI, PEN, RHO, VER, WVA, 78, KTY, NCA, TEN, VRG

Habitat
The natural habitats for Thuja occidentalis are boreal forests, temperate forests. The natural elevation is unknown. There are no conifers associated with Thuja occidentalis that are known of.

USDA Hardiness zone – 2
Thuja occidentalis is hardy to USDA Zone 2 (Bannister & Neuner, 2001), meaning its frost tolerance lies somewhere in the range of -45.6C (-50F) to -40C (-40F).

Species Continuity
The population trend for Thuja occidentalis is increasing. There are no known threats for Thuja occidentalis.

IUCN Category – LC
According to the IUCN Red List, Thuja occidentalis has been assigned the status of LC(Least Concern). This means that according to the Red List criteria, this species is not qualified as threatened.

Superordinate Taxa
The nearest superordinate taxon for Thuja occidentalis is Thuja. The coordinate taxa for Thuja occidentalis are therefore:

Thuja occidentalis is further placed under Cupressoideae. Thuja occidentalis is also placed under Cupressaceae.

Cultivars
‘Ada’, ‘Alba’, ‘Albospica’, ‘Albospicata’, ‘Albovariegata’, ‘Amber Glow’, ‘American Pillar’, ‘Americana’, ‘Analyn Broom’, ‘Argentea’, ‘Armprior’, ‘Art Boe’, ‘Asplenifolia’, ‘Athrotaxoides’, ‘Aurea’, ‘Aurea Americana’, ‘Aureospicata’, ‘Aureospicata’, ‘Aureovariegata’, ‘Aurescens’, ‘Bail John’, ‘Barabits Gold’, ‘Bateman Broom’, ‘Beaufort’, ‘Beteramsii’, ‘Bobazam’, ‘Bodmeri’, ‘Boisbriand’, ‘Bonita’, ‘Boothii’, ‘Brabant’, ‘Brandon’, ‘Braniewo’, ‘Brans’, ‘Brendt’, ‘Brewer’, ‘Brinkerhoffii’, ‘Brobeck’s Tower’, ‘Brubaker’, ‘Buchananii’, ‘Burrowii’, ‘Caespitosa’, ‘Calvary No. 2’, ‘Canadian Green’, ‘Carman Columnar’, ‘Carr’s Dark Green’ , ‘Caucasia’, ‘Cloth of Gold’, ‘Columbia’, ‘Columna’, ‘Columna Falke’, ‘Columnaris’, ‘Columnaris WB’, ‘Compact American’, ‘Compacta’, ‘Compacta Erecta’, ‘Congabe’, ‘Conica’, ‘Conica Densa’, ‘Cristata’, ‘Cristata Argenteovariegata’, ‘Cristata Aurea’, ‘Danica’, ‘Danica Gold’, ‘Dark American’, ‘Dart’s Green’, ‘Dart’s Wintergold’, ‘Davey WB’, ‘Degroot’s Emerald Spire’, ‘Degroot’s Spire’, ‘Densa’, ‘Densiformis’, ‘Denudata’, ‘Dicksonii’, ‘Dirigo Dwarf’, ‘Dorset Yellow’, ‘Douglasii’, ‘Douglasii Aurea’, ‘Douglasii Pyramidalis’, ‘Dumosa’, ‘Durant’, ‘Elegantissima’, ‘Ellwangeriana’, ‘Ellwangeriana Aurea’, ‘Emerald and Gold’, ‘Emerald Green’, ‘Emeraude’, ‘Endean’, ‘Ensata’, ‘Erecta’, ‘Ericoides’, ‘Ericoides Glauca’, ‘Erika’, ‘Europe Gold’, ‘Eurostar’, ‘Fairmont’, ‘Falke’, ‘Fastigiata’, ‘Fastigiata Nova’, ‘Fehnsilber’, ‘Filicoides’, ‘Filiformis’, ‘Filips Magic Moment’, FIRE CHIEF™, ‘Frieslandia’, ‘Froebelii’, ‘George Peabody’, ‘George Washington’, ‘Gigantoides’, ‘Globosa’, ‘Globosa Aurea’, ‘Globosa Rheindiana’, ‘Globosa Variegata’, ‘Globularis’, ‘Goldcrest’, ‘Gold Drop’, ‘Gold Dust’, ‘Golden Champion’, ‘Golden Globe’, ‘Golden Harbor’, GOLDEN SMARAGD® , ‘Golden Tuffet’, ‘Janed Gold’, ‘Goldperle’, ‘Gold Spot’, ‘Goodwin’, ‘Gracilis’, ‘Green Midget’, ‘Hancei’, ‘Harrisonii’, ‘Herzberg’, ‘Hetz Junior’, ‘Hetz Midget’, ‘Hetz Midget Variegated’, ‘Hetz Wintergreen’, ‘Hoersholmiensis’, ‘Hollandica’, ‘Holmstrup’, ‘Holmstrupensis’, ‘Holmstrupii’, ‘Holmstrup’s Yellow’, ‘Hookeriana’, ‘Hoopesii’, ‘Hoseri’, ‘Hoveyi’, ‘Hoveyi Aureovariegata’, ‘Hudsonica’, ‘Hugii’, ‘Huron’, ‘Independence WB’, ‘Indomitable’, ‘Intermedia’, ‘Intertexta’, ‘Iseli Weeping’, ‘Jessica’, ‘Karl Falke’, ‘Kelleriis Viridis’, ‘Konfetti’, ‘Krakus’, ‘Krasnal’, ‘Lanark’, ‘Linesville’, ‘Lionsville’, ‘Litomysl’, ‘Little Champion’, ‘Little Elfie’, ‘Little Gem’, ‘Little Giant’, ‘Little Rheingold’, ‘Lombarts’, ‘Lombarts Dwarf’, ‘Lombarts Wintergreen’, ‘Lori’, ‘Lutea’, ‘Lutea Holmstrup’, ‘Lutea Nana’, ‘Lutea Nova’, ‘Lutescens’, ‘Lycopodioides’, ‘Lyonville’, ‘Macrocarpa’, ‘Magnifica’, ‘Malonyana’, ‘Malonyana Aurea’, ‘Malonyana Holub’, ‘Mandy’, ‘Marrisen’s Sulphur’, ‘Mastersii’, ‘McConnell’s Globe’, ‘Meckii’, ‘Meckii Yellow Variegated’, ‘Meineke’s Dwarf’, ‘Meinekes Zwerg’, ‘Menhir’, ‘Miky’, ‘Milleri’, ‘Minima’, ‘Mini Spiral’, ‘Mirjam’, ‘Mossy’, MR BOWLING BALL® , ‘Nekrolog’, ‘Nigra’, ‘Norm Evers’, ‘Odra’, ‘Ohlendorffii’, ‘Pendula’, ‘Pendula Glauca’, ‘Pendula Variegata’, ‘Perk Vlaanderen’, ‘Piccadilly’, ‘Polish Gold’, ‘Prostrata’, ‘Pulcherrima’, ‘Puli’, ‘Pumila’, ‘Pumila Sudworth’, ‘Pygmaea’, ‘Pyramidalis’, ‘Pyramidalis Compacta’, ‘Pyramidalis Douglasii’, ‘Pyramidalis Hillii’, ‘Queen Elizabeth’, ‘Queen Victoria’, ‘Recurva Nana’, ‘Recurvata’, ‘Recurvata Argenteovariegata’, ‘Reevesii’, ‘Reflexa’, ‘Reidii’, ‘Rheingold’, ‘Rheingold Beattie’, ‘Rheingold White‘, ‘Riversii’, ‘Robusta’, ‘Robusta Argentea’, ‘Robusta Recurva’, ‘Rosencrans’, ‘Rosenthalii’, ‘Rushmore’, ‘Santa Anna’, ‘Schirrmann’, ‘Selena’, ‘Semperaurea’, ‘Sherman’, ‘Sherwood Column’, ‘Sherwood Frost’, ‘Sherwood Moss’, ‘Silvanus 1’, ‘Silver Beauty’, ‘Silveriana Nana’, ‘Silver Queen’, ‘Skinner Dwarf’, ‘Skogholm’, ‘Skybound’, ‘Smaragd’, ‘Smaragd Variegated’, ‘Smaragd Witbont’, ‘Smithiana’, ‘Smokey’, ‘Snow Tip’, ‘Spathii’, ‘Sphaerica’, ‘Spicata Aurea’, ‘Spihlmannii’, ‘Spiralis’, ‘Spotty Smaragd’, ‘Spotty Teddy’, ‘Starstruck’, ‘Steuberi’, ‘St John’, ‘Stolwijk’, ‘Stricta Variegata’, ‘Sudworth Gold’, ‘Sudworthii’, ‘Sunkist’, ‘Suzie’, ‘Syracuse Juvenile’, ‘Techny’, ‘Teddy’, ‘Ten Ham’, ‘Tetragona’, ‘Theodonensis’, ‘Thujopsoides’, ‘Thusid 1’, ‘Tiny Tim’, ‘Tom Thumb’, ‘Trompenburg’, ‘Umbraculifera’, ‘Unicorn’, ‘Van der Bom’, ‘Van Rhoon’, ‘Variegata’, ‘Vervaeneana’, ‘Vervaenean’s Gold’, ‘Virescens’, ‘Viridis’, ‘Wabernensis’, ‘Wagneri’, ‘Wansdyke Silver’, ‘Wareana’, ‘Wareana Globosa’, ‘Wareana Lutescens’, ‘Washingtonia Aurea’, ‘Watereri’, ‘Waterfield’, ‘Watnong Dwarf’, ‘Watnong Gold’, ‘Waxen’, ‘Westminster’, ‘Wiegneriana’, ‘Winona’, ‘Wintergreen’, ‘Wintergreen Pyramidal’, ‘Woodwardii’, ‘Yellow Ribbon’, ‘Zmatlík’