Chamaecyparis lawsoniana

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Common name: Port Orford cedar

Family: Cupressaceae

Distribution: S Ore & N Cal Coast

Habitat: From sea level up to 5600 ft. (1,700 m.) in cool zones with summer fog, on sandy and clay loams and rocky ridges, also along streams

IUCN Red list: Near threatened

Hardiness: Zone 6a -10 to -5 F

Life form: Evergreen conifer

Comments: Port Orford Cedar looks similar to Western Red Cedar (Thuja plicata), but the scaled leaves are smaller with a white X pattern below. The round cones are ⅜ inch (1 cm.) in diameter. This species is threatened through much of its natural range with pathogenic root rot (Phytophthora lateralis). Note that Port Orford Cedar is not a true cedar. That is, its genus is not Cedrus, the genus of the true cedars. Its closest relative is Hinoki cedar, Chamaecyparis obtusa which occurs in Japan and is an example of a species dysjunct whaere two very similar plants occur in very geographically removed locations.

Links: Northwest Conifers • Gymnosperm Database

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1: 2400 s, 1000 e (ST 2400,1000) • Accession: 1928-3363/1
2: 2400 s, 1200 e (ST 2400,1200) • Accession: 1928-3378/1
3: 2400 s, 1200 e (ST 2400,1200) • Accession: 1928-3379/1
4: 400 s, 600 e (ST 400,600) • Accession: 1931-571/1
5: 500 s, 700 e (ST 500,700) • Accession: 1931-730/1
6: 500 s, 700 e (ST 500,700) • Accession: 1931-733/1
7: 500 s, 700 e (ST 500,700) • Accession: 1931-734/1
8: 500 s, 700 e (ST 500,700) • Accession: 1931-736/1
9: 500 s, 700 e (ST 500,700) • Accession: 2013-086/1 • Provenance: Wild
10: 500 s, 700 e (ST 500,700) • Accession: 2015-152/1 • Provenance: Wild
11: 500 s, 700 e (ST 500,700) • Accession: 2015-155/1 • Provenance: Wild
12: 500 s, 700 e (ST 500,700) • Accession: 2015-156/1 • Provenance: Wild
13: 500 s, 700 e (ST 500,700) • Accession: 2015-157/2 • Provenance: Wild
14: 500 s, 700 e (ST 500,700) • Accession: 2015-158/1 • Provenance: Wild
15: 500 s, 700 e (ST 500,700) • Accession: 2015-327/2 • Provenance: Wild
16: 500 s, 700 e (ST 500,700) • Accession: 2015-328/1 • Provenance: Wild
17: 500 s, 700 e (ST 500,700) • Accession: 2015-329/1 • Provenance: Wild
18: 600 s, 600 e (ST 600,600) • Accession: 1931-801/1
19: 600 s, 600 e (ST 600,600) • Accession: 1931-802/1
20: 600 s, 600 e (ST 600,600) • Accession: 1931-804/1

Area

Individual

Hoyt Arboretum, Portland, Oregon, USA

Plant Database

Taxon

Chamaecyparis lawsoniana

Locations