Chiba University Matsudo/Kashiwa Campus Plant Database

Details of genus: Thuja L. [160]

genus_ja:

genus_en: Arborvitae

# spp.:

pub_year:

accepted: Accepted

Family: Cupressaceae

family_ja: ヒノキ

Infra familial classification:

distribution_en: E.Asia, N.America

description_en: Genus of 6 species of narrowly to broadly conical, sometimes columnar, monoecious, evergreen, coniferous trees found in forests in E. Asia and North America. Scale-like, narrowly wedge- to diamond-shaped leaves, borne in 2 ranks of opposite pairs, are usually aromatic when bruised. The small, erect, variably shaped female cones have scales that hinge from the base; male cones are small and ovoid. Grow as specimen trees; most are suitable for hedging. The dwarf cultivars may be grown in a rock garden. Contact with the foliage may aggravate skin allergies.

hardiness_en: Fully hardy.

cultivation_en:

propagation_en: Sow seed in late winter in containers in a cold frame. Insert semi-ripe cuttings in late summer.

pests_en: Prone to scale insects, Coryneum canker, and aphids. Leaves are susceptible to Keithia disease, which may be fatal in young seedlings.

description_ja:

comment:

comment_ja: クロベ，ニオイヒバ

type_species:

Phylogenetic definition:

Update Information: Created: 2007-12-06 12:51; Updated: 2022-05-04 14:05

family: