千葉大学東葛キャンパス植物データベース

属名の詳細: Pittosporum Banks ex Gaertner [367]

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科名: Pittosporaceae

科の和名: トベラ

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原生地・分布（英語）: Trop. & S.Africa to NZ & Pacific

説明（英語）: Genus of approximately 200 species of usually evergreen shrubs and trees, a few epiphytic, found in habitats ranging from sandy savannah to rain-forest, mainly in Australasia, but also in southern Africa, S. and E. Asia, and the Pacific islands. They are grown for their attractive, glossy, often leathery leaves, which are simple, usually entire, and borne alternately or in whorls. The often fragrant, 5-petalled flowers are borne mostly singly in the leaf axils, or in axillary or terminal corymbs, umbels, panicles, or clusters; they are followed by nearly spherical, woody fruits (capsules) that contain usually black seeds embedded in a sticky, brownish yellow mucilage. Where temperatures fall below 0°C (32°F), grow in a cool greenhouse, moving the plants outdoors for the summer. In warmer climates, the trees are fine specimens for a lawn; the shrubs are suitable for a border, and make a good hedge or windbreak, especially in coastal regions.

耐寒性（英語）: Frost hardy to frost tender. Half-hardy species may survive short spells at several degrees below 0°C (32°F), provided wood has been well ripened in summer.

栽培（英語）:

繁殖（英語）: Sow seed ideally as soon as ripe, or in spring in containers in a cold frame. Take semi-ripe cuttings in summer, or layer or air layer in spring.

病害虫（英語）: Red spider mites and scale insects may infest greenhouse specimens. Leaf spot and powdery mildew may cause problems.

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備考: トベラ，コヤスノキ

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更新情報: 作成: 2007-12-06 12:51; 更新: 2022-03-09 15:20

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