Chamaecyparis

…An evergreen tall tree of the cypress family with fine, scale-like leaves pressed together and twigs with two sides (illustration). It is endemic to Japan, and its timber has a wide range of uses. The trunk grows straight, sometimes reaching a height of 50 m and a diameter of 2 m. The bark of the trunk is reddish-brown and splits vertically, peeling off in thin strips, the rest of which is strongly reddish. The branches are densely divided, forming an elliptical-conical crown. The twigs are flattened, with scaly leaves arranged in cross-pairs, with the dorsal and ventral leaves rhomboid and the lateral leaves folded in two, and the tips blunt. There are white stomatal lines at the borders of each leaf on the dorsal (underside) side of the twig, giving it a Y-shape. …

*Some of the terminology that mentions "Chamaecyparis" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…細かい鱗片状の葉が圧着して，小枝に表裏の別があるヒノキ科の常緑高木（イラスト）。日本特産で，木材の用途がきわめて広い。　幹がまっすぐ伸び，ときに高さ50m，径2mに達する。幹の樹皮は帯赤褐色で縦に裂けて薄くはがれ，あとは赤みが強い。枝は密に分かれ，楕円状円錐形の樹冠をなす。小枝は扁平で，鱗片葉を十字対生し，葉は背腹面のものがひし形，側方のものが二つ折りで，先端は鈍形である。小枝背側(裏側)の各葉の境に白い気孔線があって，Y字形を呈する。…

※「Chamaecyparis」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報