千葉大学東葛キャンパス植物データベース

属名の詳細: Betula L. [23]

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属英名: Birch

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正名？: 正名

科名: Betulaceae

科の和名: カバノキ

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説明（英語）: Genus of about 60 species of deciduous trees and shrubs found in diverse habitats, including woodland, moors, mountains, and heathland, throughout the N. hemisphere. Leaves are alternate, toothed, usually ovate, and mid- to dark green. Male and female flowers are borne in separate catkins on the same plant in spring, the male catkins usually yellow-brown, pendent, and longer than the females, which are erect at first, becoming pendent. Birches are grown for their ornamental bark, colourful autumn foliage, attractive male catkins, and graceful, open habit. Many are suitable for a small garden, either as isolated specimens or in small groups.

耐寒性（英語）: Fully hardy; most are tolerant of very exposed positions.

栽培（英語）:

繁殖（英語）: Sow seed, of known wild origin only (most seed from cultivated plants will produce hybrids), in a seedbed in autumn. Root softwood cuttings in summer, or graft in winter.

病害虫（英語）: Birch borers, birch leaf mining sawfly, birch rust, aphids, honey fungus, and mildew may cause problems. Leaves may become chlorotic on poor, shallow, chalky soil.

説明:

備考（英語）: N. hemisphere

備考: シラカンバ，ダケカンバ，ミズメ

属のタイプ種名:

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更新情報: 作成: 2007-12-06 12:51; 更新: 2020-09-04 03:56

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