千葉大学東葛キャンパス植物データベース

属名の詳細: Clethra L. [33]

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属英名: Summer-sweet, Sweet pepper bush, White alder

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正名？: 正名

科名: Clethraceae

科の和名: リョウブ

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原生地・分布（英語）: Trop.America, Asia, N.America

説明（英語）: Genus of more than 60 species of deciduous and evergreen trees and shrubs, occurring in woodland, swamps, and rocky places in E. Asia and North America, with one species (C. arborea) from Madeira. The leaves are alternate, simple, obovate to oblong, rarely lance-shaped, finely to coarsely toothed, and mid- to dark green. Clethras are grown for their fragrant, bell- to cup-shaped, white or yellowish white flowers, borne in racemes or panicles, and are suitable for a woodland garden. In frost-prone areas, grow C. arborea in a cool greenhouse or conservatory; it may be moved outdoors during summer.

耐寒性（英語）: Fully hardy to half hardy.

栽培（英語）:

繁殖（英語）: Sow seed at 6-12°C (43-54°F) in spring or autumn, or sow seed of hardy species in containers outdoors in spring or autumn. Root greenwood cuttings of deciduous species in early summer and semi-ripe cuttings of evergreens in mid- or late summer.

病害虫（英語）: Trouble free.

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備考（英語）:

備考: リョウブ

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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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