千葉大学東葛キャンパス植物データベース

属名の詳細: Picea A.Dietr. [19]

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属英名: Spruce

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正名？: 正名

科名: Pinaceae

科の和名: マツ

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説明（英語）: Genus of 30-40 species of monoecious, evergreen, coniferous trees occurring in forest in cool-temperate regions of the N. hemisphere. They have whorled branches and needle-like leaves set singly around the shoots. The woody, oval to oblong-cylindrical female cones, terminal on main shoots and sideshoots, are erect at flowering, later pendent; they ripen in a season from green or red when young, to purple or brown when mature. Ovoid, yellow to red-purple male cones, 2-3cm (3/4-1 1/4in) long, are borne in spring on the previous year’s shoots. Spruces are useful for shelter planting or as specimen trees; several cultivars are dwarf or slow-growing.

耐寒性（英語）: Fully hardy to frost hardy.

栽培（英語）:

繁殖（英語）: Sow seed in containers in a cold frame in spring. Graft cultivars in winter. Take ripewood cuttings of dwarf cultivars in late summer.

病害虫（英語）: Adelgids may cause galls, and aphids may cause needle loss. Red spider mites may be trouble-some. Susceptible to honey fungus.

説明:

備考（英語）: Cool N. hemisphere

備考: トウヒ，エゾマツ

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系統学的定義:

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

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