Chamaecyparis pisifera


Chamaecyparis pisifera is a species of cypress in the genus Chamaecyparis, native to central and southern Japan, on the islands of Honshū and Kyūshū.

Description

It is a slow-growing coniferous tree growing to 35–50 m tall with a trunk up to 2 m in diameter. The bark is red-brown, vertically fissured and with a stringy texture. The foliage is arranged in flat sprays; adult leaves are scale-like, 1.5–2 mm long, with pointed tips, green above, green below with a white stomatal band at the base of each scale-leaf; they are arranged in opposite decussate pairs on the shoots. The juvenile leaves, found on young seedlings, are needle-like, 4–8 mm long, soft and glaucous bluish-green. The cones are globose, 4–8 mm diameter, with 6–10 scales arranged in opposite pairs, maturing in autumn about 7–8 months after pollination.

Related species

A related cypress found on Taiwan, Chamaecyparis formosensis, differs in longer ovoid cones 6–10 mm long with 10–16 scales. The extinct Eocene species Chamaecyparis eureka, known from fossils found on Axel Heiberg Island in Canada, is noted to be very similar to C. pisifera.

Name

The Latin specific epithet pisifera, "pea-bearing", refers to the small round green cones.

Uses

Timber

It is grown for its timber in Japan, where it is used as a material for building palaces, temples, shrines and baths, and making coffins, though less valued than the timber of C. obtusa. The wood is lemon-scented and light-coloured with a rich, straight grain, and is rot resistant.

Ornamental

It is also a popular ornamental tree in parks and gardens, both in Japan and elsewhere in temperate climates including western and central Europe and parts of North America. A large number of cultivars have been selected for garden planting, including dwarf forms, forms with yellow or blue-green leaves, and forms retaining the juvenile needle-like foliage; particularly popular juvenile foliage cultivars include 'Plumosa', 'Squarrosa' and 'Boulevard'.
In cultivation in the UK the following have gained the Royal Horticultural Society's Award of Garden Merit :
  • 'Boulevard':, blue-green foliage
  • 'Filifera Aurea': rounded, needle-like golden foliage, to
  • 'Plumosa Compressa': dwarf to, soft mossy foliage on young plants
  • 'Sungold': rounded shrub to tall and wide, with needle-like lime green foliage