Plantae > Tracheophyta > Pinopsida > Pinales > Cupressaceae > Chamaecyparis > Chamaecyparis lawsonianaChamaecyparis lawsoniana (Lawson Cypress; Port Orford White-cedar; Port Orford Cedar; Oregon Cedar)Synonyms: Chamaecyparis allumii; Chamaecyparis boursieri; Chamaecyparis boursieri f. viridis; Chamaecyparis lawsoniana f. alba-spica; Chamaecyparis lawsoniana f. aluminii; Chamaecyparis lawsoniana f. argentea; Chamaecyparis lawsoniana f. erecta; Chamaecyparis lawsoniana f. filiformis; Chamaecyparis lawsoniana f. fletcheri; Chamaecyparis lawsoniana f. fraseri; Chamaecyparis lawsoniana f. glauca; Chamaecyparis lawsoniana f. glaucescens; Chamaecyparis lawsoniana f. gracilis; Chamaecyparis lawsoniana f. intertexta; Chamaecyparis lawsoniana f. lutea; Chamaecyparis lawsoniana f. nana; Chamaecyparis lawsoniana f. pendula; Chamaecyparis lawsoniana f. pendula-alba; Chamaecyparis lawsoniana f. pendula-vera; Chamaecyparis lawsoniana var. allumii; Chamaecyparis lawsoniana var. argentea; Chamaecyparis lawsoniana var. aurea; Chamaecyparis lawsoniana var. billwoodiana; Chamaecyparis lawsoniana var. glauca; Chamaecyparis lawsoniana var. minima-glauca; Chamaecyparis lawsoniana var. nana-glauca; Chamaecyparis lawsoniana var. pendula; Chamaecyparis lawsoniana var. pendula-vera; Chamaecyparis lawsoniana var. stewartii; Cupressus fragrans; Cupressus lawsoniana (homotypic); Cupressus lawsoniana f. alumnii; Cupressus lawsoniana f. argentea; Cupressus lawsoniana f. lutea; Cupressus lawsoniana f. stewartii; Cupressus lawsoniana f. viridis; Cupressus lawsoniana var. alba-spica; Cupressus lawsoniana var. alba-spica-nana; Cupressus lawsoniana var. aluminii; Cupressus lawsoniana var. argentea (homotypic); Cupressus lawsoniana var. erecta; Cupressus lawsoniana var. filiformis; Cupressus lawsoniana var. glauca; Cupressus lawsoniana var. gracilis; Cupressus lawsoniana var. intertexta; Cupressus lawsoniana var. minima-glauca; Cupressus lawsoniana var. nana-glauca; Cupressus lawsoniana var. pendula; Cupressus lawsoniana var. pendula-alba (homotypic); Cupressus lawsoniana var. pendula-vera; Cupressus nutkanus; Retinispora lawsoniana (homotypic) Language: Chi; Cze; Dut; Fre; Ger; Hrv, Srp; Hun; Ita; Nor; Por; Rus; Slo; Spa Chamaecyparis lawsoniana, known as Port Orford cedar or Lawson cypress, is a species of conifer in the genus Chamaecyparis, family Cupressaceae. It is native to Oregon and northwestern California, and grows from sea level up to 1,500 m (4,900 ft) in the valleys of the Klamath Mountains, often along streams. |
Air Quality Improvement [1] | Medium | Allergen Potential [1] | Medium-High | Carbon Capture [1] | Medium-Low | Screening - Summer [2] | Dense | Screening - Winter [2] | Dense | Shade Percentage [1] | 83 % | Temperature Reduction [1] | Medium-Low | Wind Reduction [1] | High | | Bloom Period [2] | Mid Spring | Drought Tolerance [2] | Low | Fire Tolerance [2] | Medium | Flower Type [3] | Monoecious | Frost Free Days [2] | 5 months 23 days | Fruit/Seed Abundance [2] | Low | Fruit/Seed Begin [2] | Summer | Fruit/Seed End [2] | Fall | Growth Form [2] | Single Stem | Growth Period [2] | Spring, Summer | Growth Rate [2] | Moderate | Janka Hardness [4] | 720 lbf (327 kgf) Soft | Leaf Type [3] | Evergreen | Lifespan [5] | Perennial | Pollinators [3] | Wind | Propagation [2] | Bare Root, Container, Cutting, Seed | Root Depth [2] | 4.986 feet (152 cm) | Scent [3] | The crushed foliage has a pungent smell. | Seed Spread Rate [2] | Moderate | Seed Vigor [2] | Low | Seeds Per [2] | 209599 / lb (462088 / kg) | Shape/Orientation [2] | Conical | Specific Gravity [7] | 0.43 | Structure [3] | Tree | Usage [3] | Plants can be grown as a tall hedge; Any trimming should be done in the summer;
Certain dwarf forms can be used for ground cover, the cultivars 'Knowefieldensis', 'Nidiformis' and 'Tamariscifolia' have been recommended;
The branches have been used to make brooms;
Wood - very close-grained, hard, strong, durable, easily worked, light, abounding in fragrant resin, acid resistant. One of the world's finest timbers, it is widely used for flooring, fencing, making boats etc; It is now in short supply due to over-harvesting without replanting; | Vegetative Spread Rate [2] | None | | Flower Color [2] | Blue | Foliage Color [2] | Green | Fruit Color [2] | Brown | | Height [3] | 82 feet (25 m) | Width [3] | 13.12 feet (4 m) | | Hardiness Zone Minimum [1] | USDA Zone: 6 Low Temperature: -10 F° (-23.3 C°) → 0 F° (-17.8 C°) | Hardiness Zone Maximum [1] | USDA Zone: 7 Low Temperature: 0 F° (-17.8 C°) → 10 F° (-12.2 C°) | Light Preference [6] | Mixed Sun/Shade | Soil Acidity [6] | Moderate Acid | Soil Fertility [6] | Mostly Infertile | Soil Moisture [6] | Moist | Water Use [1] | Moderate | View Plants For A Future Record : Chamaecyparis lawsoniana |
Name |
IUCN Category |
Area acres |
Location |
Species |
Website |
Climate |
Land Use |
Avon Gorge Woodlands |
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376 |
England, United Kingdom |
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Ben Nevis |
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23023 |
Scotland, United Kingdom |
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Berwyn a Mynyddoedd de Clwyd/ Berwyn and South Clwyd Mountains |
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67265 |
Wales, United Kingdom |
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Braunton Burrows |
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3328 |
England, United Kingdom |
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Cardigan Bay/ Bae Ceredigion |
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236876 |
Wales, United Kingdom |
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Carmarthen Bay and Estuaries/ Bae Caerfyrddin ac Aberoedd |
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163340 |
Wales, United Kingdom |
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Dorset Heaths |
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14161 |
England, United Kingdom |
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Dorset Heaths (Purbeck and Wareham) and Studland Dunes |
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5491 |
England, United Kingdom |
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Exmoor Heaths |
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26455 |
England, United Kingdom |
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Gettysburg National Military Park |
V |
3560 |
Pennsylvania, United States |
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Humber Estuary |
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90582 |
England, United Kingdom |
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Isle of Rum National Nature Reserve |
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Scotland, United Kingdom |
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Lower Derwent Valley |
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2263 |
England, United Kingdom |
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Lyme Bay and Torbay |
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77215 |
England, United Kingdom |
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Morecambe Bay |
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151985 |
England, United Kingdom |
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North Norfolk Coast |
|
7926 |
England, United Kingdom |
|
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North Somerset and Mendip Bats |
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1387 |
England, United Kingdom |
|
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Oregon Caves National Monument |
V |
456 |
Oregon, United States |
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Palava Protected Landscape Area |
V |
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Czech Republic |
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Pen Llyn a`r Sarnau/ Lleyn Peninsula and the Sarnau |
|
360832 |
Wales, United Kingdom |
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Reserva de la Biosfera de Urdaibai Biosphere Reserve |
V |
1777 |
Spain |
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Severn Estuary/ Môr Hafren |
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182155 |
England/Wales, United Kingdom |
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Start Point to Plymouth Sound & Eddystone |
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84204 |
England, United Kingdom |
|
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The Broads |
|
14554 |
England, United Kingdom |
|
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The New Forest |
|
72309 |
England, United Kingdom |
|
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The Wash and North Norfolk Coast |
|
266284 |
England, United Kingdom |
|
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Thursley, Ash, Pirbright and Chobham |
|
12696 |
England, United Kingdom |
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Tulach Hill and Glen Fender Meadows |
|
3912 |
Scotland, United Kingdom |
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Wormley Hoddesdonpark Woods |
|
829 |
England, United Kingdom |
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Attributes / relations provided by ♦ 1i-Tree Species v. 4.0, developed by the USDA Forest Service's Northern Research Station and SUNY-ESF using the Horticopia, Inc. plant database. ♦ 2USDA Plants Database, U. S. Department of Agriculture ♦ 3Plants For A Future licensed under a Creative Commons Attribution 4.0 License♦ 4Wood Janka Hardness Scale/Chart J W Morlan's Unique Wood Gifts ♦ 5PLANTATT - Attributes of British and Irish Plants: Status, Size, Life History, Geography and Habitats, M. O. Hill, C. D. Preston & D. B. Roy, Biological Records Centre, NERC Centre for Ecology and Hydrology (2004) ♦ 6ECOFACT 2a Technical Annex - Ellenberg’s indicator values for British Plants, M O Hill, J O Mountford, D B Roy & R G H Bunce (1999) ♦ 7Forest Inventory and Analysis DB version 5.1, May 4, 2013, U.S. Forest Service ♦ 8Biological Records Centre Database of Insects and their Food Plants♦ 9New Zealand Institute for Plant & Food Research Plant-SyNZ database♦ 10HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández ♦ 11Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P. ScaleNet 4 November 2009 ♦ 12Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics. |
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0
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