Difference between revisions of "Thuja plicata"

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|familia=Cupressaceae
 
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|genus=Thuja  
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|genus=Thuja
 
|species=plicata
 
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|common_name=Giant arbor, Western red cedar
 
|common_name=Giant arbor, Western red cedar
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'''Western Red Cedar''' ('''''Thuja plicata''''') is a species of ''[[Thuja]]'', an [[evergreen]] [[Pinophyta|coniferous]] [[tree]] in the cypress family [[Cupressaceae]]. In the American [[Horticulture|horticultural]] trade, it is also known as the '''Giant Arborvitae''', ''Arborvitae'' being another name for its [[genus]].
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| name = ''Thuja plicata''
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| common_names = Western Redcedar
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The Western Red Cedar is not actually a cedar ''([[Cedrus]])'', but belongs in the Cupressaceae family, along with [[cypress]]es.  It is known by many names: Pacific red cedar, British Columbia cedar, canoe cedar, giant cedar, and red cedar.<ref name="stewart 22">Stewart (1984), p. 22</ref>
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The Western Red Cedar is a large tree, ranging between 40 to 150 feet (12 to 45 meters) tall and up to 22 feet (7 meters) in trunk diameter. Trees growing in the open will exhibit a crown that reaches the ground, whereas trees densely spaced together will only exhibit a crown at the top, where light can reach the leaves.<ref name="stewart 24"/>  Some individuals can live nearly a thousand years, if not more.
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The foliage forms flat sprays with scale-like leaves in opposite pairs, with successive pairs at 90° to each other. The foliage sprays are green above, and green marked white with [[stomata]]l bands below. The [[conifer cone|cones]] are slender, 15–20&nbsp;mm long and 4–5&nbsp;mm broad, with 8-12 thin, overlapping scales. 
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| color = IndianRed
 
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| image = Thuja plicata shoot.jpg
 
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| image_caption = ''Thuja plicata'' shoot with mature cones
 
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| regnum = Plantae
 
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| divisio = Pinophyta
 
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| classis = Pinopsida
 
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| ordo = Pinales
 
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| genus = Thuja
 
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''[[Thuja]] plicata'', Don (T. gigantea, Nutt. T. Menziesii, Douglas. T. Lobbii, Hort.). Tall tree, attaining 200 ft., with short horizontal branches often pendulous at the ends, forming a narrow pyramid: trunk with a much-buttressed base and clothed with cinnamon-red bark: branchlets slender, regularly and closely set: lvs. bright green and glossy above, dark green beneath and with whitish triangular spots: lvs. of vigorous shoots widely spaced, ending in long points parallel to axis, of the lateral branchlets acute and scarcely glandular: cones cylindric-ovoid, little over 1/2 in. long; scales 8-10, elliptic-oblong, usually the 3 middle pairs fertile; seeds winged, notched at the apex. Alaska to N. Calif. and Mont. Var. atrovirens, Sudw. (T. gigantea atrovirens, Beissn.). Foliage dark green. Var. fastigiata, Schneid. (T. gigantea fastigiata, Beissn. T. gigantea pyramidalis, Bean). Columnar form. Var. gracilis, Rehd. (T. gigantea var. gracilis, Beissn.). Smaller tree, with more slender branches and smaller foliage of paler green. Var. pendula, Schneid. (T. gigantea pendula, Beissn.). Form with slender pendulous branches.
 
''[[Thuja]] plicata'', Don (T. gigantea, Nutt. T. Menziesii, Douglas. T. Lobbii, Hort.). Tall tree, attaining 200 ft., with short horizontal branches often pendulous at the ends, forming a narrow pyramid: trunk with a much-buttressed base and clothed with cinnamon-red bark: branchlets slender, regularly and closely set: lvs. bright green and glossy above, dark green beneath and with whitish triangular spots: lvs. of vigorous shoots widely spaced, ending in long points parallel to axis, of the lateral branchlets acute and scarcely glandular: cones cylindric-ovoid, little over 1/2 in. long; scales 8-10, elliptic-oblong, usually the 3 middle pairs fertile; seeds winged, notched at the apex. Alaska to N. Calif. and Mont. Var. atrovirens, Sudw. (T. gigantea atrovirens, Beissn.). Foliage dark green. Var. fastigiata, Schneid. (T. gigantea fastigiata, Beissn. T. gigantea pyramidalis, Bean). Columnar form. Var. gracilis, Rehd. (T. gigantea var. gracilis, Beissn.). Smaller tree, with more slender branches and smaller foliage of paler green. Var. pendula, Schneid. (T. gigantea pendula, Beissn.). Form with slender pendulous branches.
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<gallery>
 
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File:Jumet (Bivort) AR1aJPG.jpg
 
Image:QuinaultLakeCedar 7274c.jpg|''Quinault Lake Redcedar'', largest in the world
 
Image:QuinaultLakeCedar 7274c.jpg|''Quinault Lake Redcedar'', largest in the world
 
Image:Starr_041221_1920_thuja_plicata.jpg|''T. plicata''
 
Image:Starr_041221_1920_thuja_plicata.jpg|''T. plicata''
 
Image:cedar_bark.png|
 
Image:cedar_bark.png|
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File:Thuja plicata shoot.jpg
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File:Thuja plicata 43570.JPG
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File:Thuja plicata Vancouver.jpg
 
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</gallery>
  
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Revision as of 00:21, 27 April 2010


Trees dsc00826.jpg


Plant Characteristics
Height: ⇕ 70 ft"ft" can not be assigned to a declared number type with value 70. to 120 ft"ft" can not be assigned to a declared number type with value 120.
Width: ⇔ 15 ft"ft" can not be assigned to a declared number type with value 15.
Cultivation
Exposure: ☼ sun
USDA Zones: 5 to 10
Scientific Names

Cupressaceae >

Thuja >

plicata >


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Western Red Cedar (Thuja plicata) is a species of Thuja, an evergreen coniferous tree in the cypress family Cupressaceae. In the American horticultural trade, it is also known as the Giant Arborvitae, Arborvitae being another name for its genus.

The Western Red Cedar is not actually a cedar (Cedrus), but belongs in the Cupressaceae family, along with cypresses. It is known by many names: Pacific red cedar, British Columbia cedar, canoe cedar, giant cedar, and red cedar.[1]

The Western Red Cedar is a large tree, ranging between 40 to 150 feet (12 to 45 meters) tall and up to 22 feet (7 meters) in trunk diameter. Trees growing in the open will exhibit a crown that reaches the ground, whereas trees densely spaced together will only exhibit a crown at the top, where light can reach the leaves.[2] Some individuals can live nearly a thousand years, if not more.

The foliage forms flat sprays with scale-like leaves in opposite pairs, with successive pairs at 90° to each other. The foliage sprays are green above, and green marked white with stomatal bands below. The cones are slender, 15–20 mm long and 4–5 mm broad, with 8-12 thin, overlapping scales.


Read about Thuja plicata in the Standard Cyclopedia of Horticulture 

Thuja plicata, Don (T. gigantea, Nutt. T. Menziesii, Douglas. T. Lobbii, Hort.). Tall tree, attaining 200 ft., with short horizontal branches often pendulous at the ends, forming a narrow pyramid: trunk with a much-buttressed base and clothed with cinnamon-red bark: branchlets slender, regularly and closely set: lvs. bright green and glossy above, dark green beneath and with whitish triangular spots: lvs. of vigorous shoots widely spaced, ending in long points parallel to axis, of the lateral branchlets acute and scarcely glandular: cones cylindric-ovoid, little over 1/2 in. long; scales 8-10, elliptic-oblong, usually the 3 middle pairs fertile; seeds winged, notched at the apex. Alaska to N. Calif. and Mont. Var. atrovirens, Sudw. (T. gigantea atrovirens, Beissn.). Foliage dark green. Var. fastigiata, Schneid. (T. gigantea fastigiata, Beissn. T. gigantea pyramidalis, Bean). Columnar form. Var. gracilis, Rehd. (T. gigantea var. gracilis, Beissn.). Smaller tree, with more slender branches and smaller foliage of paler green. Var. pendula, Schneid. (T. gigantea pendula, Beissn.). Form with slender pendulous branches. CH


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Cultivation

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Propagation

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Pests and diseases

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Species

Gallery

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  • Jumet (Bivort) AR1aJPG.jpg

  • Quinault Lake Redcedar, largest in the world

  • T. plicata

  • Cedar bark.png
  • Thuja plicata shoot.jpg
  • Thuja plicata 43570.JPG
  • Thuja plicata Vancouver.jpg

References

External links


  1. ↑ Stewart (1984), p. 22
  2. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named stewart 24
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