千葉大学東葛キャンパス植物データベース

属名の詳細: Torreya Arn. [408]

属和名:

属英名: Nutmeg yew

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正名？: 正名

科名: Taxaceae

科の和名: イチイ

科内分類群:

原生地・分布（英語）: E.Asia, N.America

説明（英語）: Genus of 7 species of dioecious, evergreen, coniferous shrubs or trees found in woodland in Asia and North America. The flattened, lance-shaped, 2-ranked leaves are Yew-like, but hard and spine-tipped. The common name refers to the single-seeded, ovoid or ovoid-ellipsoid female, cone-like structures ("cones"); they may take 2 years to ripen, maturing to olive- or plum-like fruits. The male "cones" are white and spherical. Nutmeg yews are vigorous, small to medium-sized specimen trees. T. californica thrives in areas with cool, damp summers, whereas other species grow best in areas with summers that are warm and humid.

耐寒性（英語）: Fully hardy.

栽培（英語）:

繁殖（英語）: Sow seed in containers in a cold frame or in a seed bed, as soon as ripe; the seed may take 2 or more years to germinate. Insert semi-ripe cuttings in late summer; use cuttings from strongly upright growth to form leading shoots.

病害虫（英語）: Trouble free.

説明:

備考（英語）:

備考: カヤ

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系統学的定義:

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

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