Evergreen, dioecious (sometimes monoecious in Torreya and Taxus canadensis) trees or shrubs; bark thin and flaking to thick and rough or tight, red-brown to dark brown, calcium oxalate crystalline fibers sometimes present; wood lacking resin, with helical thickenings on secondary walls of axial tracheids (often absent in Austrotaxus); branches spreading to erect and ascending; branchlets
opposite or alternate, glabrous, brown to green, completely covered by the decurrent bases of the leaves.
It is also used as a medicinal plant; the branchlets
of this tree are used as toothbrushes, the root decoctions are taken orally to stop diarrhoea, the branch decoctions are administered orally for stomach upset, the leaves are used in treating coughs and stomach ache, the root decoction also forms part of a medicine for hookworms, and the leaf infusion is used in preparing a cough mixture.
Foliage area, number of leaves and number of branchlets
Five to six branchlets
are selected around the trunk to become new branches.
Cryptomeria japonica `Tansu': This attractive dwarf slowly forms a broad pyramid of mid-green, its ropelike branchlets
clothed with needles that twist spirally around the stem.
Although not evergreen, the tracery of its polished mahogany branchlets
make a lovely winter feature.
Peattie said it excels at that use because it grows thick-set (a gardening term) with zig-zag branchlets
to the ground and scattered thorns, and is hardy in extreme weather, such as drought, heat and wind.
Thus, by separating the leaves from the branchlets
[3, 4] the terpenes of a distinct anatomical, and presumably biosynthetic unit can be analyzed.
Inner appendage consisting of small basal cell giving rise on either side to very short branchlets
, bearing apically crown of antheridia; in older specimens antheridia replaced by slender, hyaline, curved, sterile appendages, which barely reach half the height of perithecium.
The exterior of the swellings was similar in texture to the rest of the branchlets
, grayish-brown and scaly, except that a part of the surface was concave and led into a pool of resin in which gregarious cecidomyiid larvae were suspended.
Branches with leaves mostly in 2 ranks (specimens should not be from juvenile individuals, fertile branchlets
, stump sprouts, terminal vegetative branchlets
, or late-season growth); leaves mostly spreading; leaves narrowly linear, 5-17 mm long T.
Drooping threadlike branchlets
are tipped with yellow.