日本扁柏Chamaecyparis obtusa
中文名（Chinese Name）：日本扁柏
学名（Scientific Name）：Chamaecyparis obtusa (Sieb. et Zucc.) Endl.
英文名（English Common Name）：
别名（Chinese Common Name）：白柏、钝叶扁柏
异名（Synonym）：Cupressus obtusa (Siebold et Zucc.) F. Muell.；Retinispora obtusa Siebold et Zucc.；Chamaecyparis breviramea Maxim.；Chamaecyparis pendula Maxim.；Cupressus pendens F. Muell.；Cupressus breviramis F. Muell.；Retinispora obtusa var. breviramea (Maxim.) A.V. Bobrov & Melikyan；Chamaecyparis obtusa var. pendula (Maxim.) Mast.；Chamaecyparis obtusa var. breviramea (Maxim.) Mast.；Chamaecyparis obtusa var. columnaris Uyeki；Chamaecyparis obtusa var. obtusa (Siebold & Zucc.) Endl.；Chamaecyparis obtusa var. fastigiato-ovata Uyeki；Chamaecyparis leptoclada Henkel & W.Hochst.；Chamaecyparis obtusa f. barronii Rehder；Chamaecyparis obtusa f. breviramea (Maxim.) Rehder；Chamaecyparis obtusa f. filicoides (Hartw. & Rümpler) Beissn.；Chamaecyparis obtusa f. pendula (Maxim.) Beissn.；Chamaecyparis obtusa var. ericoides Boehm. ex Beissn.；Chamaecyparis obtusa var. filicoides Hartw. & Rümpler；Chamaecyparis obtusa var. langissimopendula Makino；Chamaecyparis obtusa var. plumosa Carrière；Chamaecyparis obtusa var. similofacifera Makino；Chamaecyparis obtusa var. tsatsumi Slavin；Chamaecyparis tsatsumi (Slavin) Slavin；Chamaepeuce obtusa (Siebold & Zucc.) Zucc. ex Gordon；Cupressus acuta Lavallée；Cupressus breviramea (Maxim.) F.Muell.；Chamaecyparis acuta Beissn.；Chamaecyparis andelyensis Gordon；Chamaecyparis keteleri Standish ex Parl.；Cupressus obtusa subsp. breviramea (Maxim.) Silba；Cupressus obtusa subsp. gigantea Silba；Cupressus obtusa subsp. yokohamaensis Silba；Cupressus obtusa var. pendula (Maxim.) Mast.；Juniperus sanderi Bois；Retinispora filicoides Syme；Retinispora filifera Fowler；Retinispora fusinoki Zucc. ex Gordon；Retinispora monstrosa Carrière；Retinispora tetragona Don ex Gordon；Shishindenia ericoides (Boehm. ex Beissn.) Makino ex Koidz.；Thuja obtusa var. pendula (Maxim.) Mast.
科属（Family & Genus）：柏科（Cupressaceae）扁柏属（Chamaecyparis）
形态特征（Description）：乔木，在原产地高达40米；树冠尖塔形；树皮红褐色，光滑，裂成薄片脱落；生鳞叶的小枝条扁平，排成一平面。鳞叶肥厚，先端钝，小枝上面中央之叶露出部分近方形，长1-1.5毫米，绿色，背部具纵脊，通常无腺点，侧面之叶对折呈倒卵状菱形，长约3毫米，小枝下面之叶微被白粉。雄球花椭圆形，长约3毫米，雄蕊6对，花药黄色。球果圆球形，径8-10毫米，熟时红褐色；种鳞4对，顶部五角形，平或中央稍凹，有小尖头；种子近圆形，长2.6-3毫米，两侧有窄翅。花期4月，球果10-11月成熟。
分布（Distribution）：原产日本。
用途（Use）：作庭园观赏树。供建筑、家具及木纤维工业原料等用。
引自中国植物志英文版FOC Vol. 4
Chamaecyparis obtusa (Siebold & Zuccarini) Endlicher, Syn. Conif. 63. 1847.
日本扁柏 ri ben bian bai | Cupressaceae | Chamaecyparis
Trees to 40 m tall; trunk to 3 m d.b.h.; bark light reddish brown, peeling off in thin strips; crown narrowly pyramidal; branches drooping to pendulous. Leaves of ultimate branchlets ridged abaxially, apex obtuse or subacute; facial leaves green or yellowish green, rhomboid, 1-1.5 mm, abaxial gland absent; leaves on lower side of branchlets glaucous, with a whitish basal part; lateral leaves 1-3 mm, apex incurved. Pollen cones ellipsoid, ca. 3 mm; microsporophylls ca. 12; pollen sacs yellow. Seed cones reddish brown when ripe, globose, 1-1.2 cm in diam.; cone scales 8-10, each fertile scale with 2-5 seeds. Seeds lustrous reddish brown, obovoid or suborbicular, flattened, 3-3.5 mm in diam., including wings. Pollination Apr, seed maturity Oct-Nov.
Forests in mountain regions, also cultivated for ornament and planted for timber and afforestation; below 2800 m. Native in Taiwan; introduced in Guangdong, Guangxi, Henan, Jiangsu, Jiangxi, Shandong, Yunnan, Zhejiang [Japan].
（责任编辑：徐晔春）
学名（Scientific Name）：Chamaecyparis obtusa (Sieb. et Zucc.) Endl.
英文名（English Common Name）：
别名（Chinese Common Name）：白柏、钝叶扁柏
异名（Synonym）：Cupressus obtusa (Siebold et Zucc.) F. Muell.；Retinispora obtusa Siebold et Zucc.；Chamaecyparis breviramea Maxim.；Chamaecyparis pendula Maxim.；Cupressus pendens F. Muell.；Cupressus breviramis F. Muell.；Retinispora obtusa var. breviramea (Maxim.) A.V. Bobrov & Melikyan；Chamaecyparis obtusa var. pendula (Maxim.) Mast.；Chamaecyparis obtusa var. breviramea (Maxim.) Mast.；Chamaecyparis obtusa var. columnaris Uyeki；Chamaecyparis obtusa var. obtusa (Siebold & Zucc.) Endl.；Chamaecyparis obtusa var. fastigiato-ovata Uyeki；Chamaecyparis leptoclada Henkel & W.Hochst.；Chamaecyparis obtusa f. barronii Rehder；Chamaecyparis obtusa f. breviramea (Maxim.) Rehder；Chamaecyparis obtusa f. filicoides (Hartw. & Rümpler) Beissn.；Chamaecyparis obtusa f. pendula (Maxim.) Beissn.；Chamaecyparis obtusa var. ericoides Boehm. ex Beissn.；Chamaecyparis obtusa var. filicoides Hartw. & Rümpler；Chamaecyparis obtusa var. langissimopendula Makino；Chamaecyparis obtusa var. plumosa Carrière；Chamaecyparis obtusa var. similofacifera Makino；Chamaecyparis obtusa var. tsatsumi Slavin；Chamaecyparis tsatsumi (Slavin) Slavin；Chamaepeuce obtusa (Siebold & Zucc.) Zucc. ex Gordon；Cupressus acuta Lavallée；Cupressus breviramea (Maxim.) F.Muell.；Chamaecyparis acuta Beissn.；Chamaecyparis andelyensis Gordon；Chamaecyparis keteleri Standish ex Parl.；Cupressus obtusa subsp. breviramea (Maxim.) Silba；Cupressus obtusa subsp. gigantea Silba；Cupressus obtusa subsp. yokohamaensis Silba；Cupressus obtusa var. pendula (Maxim.) Mast.；Juniperus sanderi Bois；Retinispora filicoides Syme；Retinispora filifera Fowler；Retinispora fusinoki Zucc. ex Gordon；Retinispora monstrosa Carrière；Retinispora tetragona Don ex Gordon；Shishindenia ericoides (Boehm. ex Beissn.) Makino ex Koidz.；Thuja obtusa var. pendula (Maxim.) Mast.
科属（Family & Genus）：柏科（Cupressaceae）扁柏属（Chamaecyparis）
形态特征（Description）：乔木，在原产地高达40米；树冠尖塔形；树皮红褐色，光滑，裂成薄片脱落；生鳞叶的小枝条扁平，排成一平面。鳞叶肥厚，先端钝，小枝上面中央之叶露出部分近方形，长1-1.5毫米，绿色，背部具纵脊，通常无腺点，侧面之叶对折呈倒卵状菱形，长约3毫米，小枝下面之叶微被白粉。雄球花椭圆形，长约3毫米，雄蕊6对，花药黄色。球果圆球形，径8-10毫米，熟时红褐色；种鳞4对，顶部五角形，平或中央稍凹，有小尖头；种子近圆形，长2.6-3毫米，两侧有窄翅。花期4月，球果10-11月成熟。
分布（Distribution）：原产日本。
用途（Use）：作庭园观赏树。供建筑、家具及木纤维工业原料等用。
引自中国植物志英文版FOC Vol. 4
Chamaecyparis obtusa (Siebold & Zuccarini) Endlicher, Syn. Conif. 63. 1847.
日本扁柏 ri ben bian bai | Cupressaceae | Chamaecyparis
Trees to 40 m tall; trunk to 3 m d.b.h.; bark light reddish brown, peeling off in thin strips; crown narrowly pyramidal; branches drooping to pendulous. Leaves of ultimate branchlets ridged abaxially, apex obtuse or subacute; facial leaves green or yellowish green, rhomboid, 1-1.5 mm, abaxial gland absent; leaves on lower side of branchlets glaucous, with a whitish basal part; lateral leaves 1-3 mm, apex incurved. Pollen cones ellipsoid, ca. 3 mm; microsporophylls ca. 12; pollen sacs yellow. Seed cones reddish brown when ripe, globose, 1-1.2 cm in diam.; cone scales 8-10, each fertile scale with 2-5 seeds. Seeds lustrous reddish brown, obovoid or suborbicular, flattened, 3-3.5 mm in diam., including wings. Pollination Apr, seed maturity Oct-Nov.
Forests in mountain regions, also cultivated for ornament and planted for timber and afforestation; below 2800 m. Native in Taiwan; introduced in Guangdong, Guangxi, Henan, Jiangsu, Jiangxi, Shandong, Yunnan, Zhejiang [Japan].
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