千葉大学東葛キャンパス植物データベース

属名の詳細: Silybum [2682]

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科名: Asteraceae

科の和名: キク

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説明（英語）: Genus of 2 species of erect, rosette-forming, thistle-like annuals or biennials from the mountains of E. Africa and from stony slopes, steppes, and thickets in W. Africa, the Mediterranean, and Europe to C. Asia. They have broad, shallowly to deeply lobed, obovate to inversely lance-shaped, spiny, light to dark green leaves, and bear spherical, single, purple-pink flowerheads, enclosed in spiny bracts. Cultivated for their foliage and flowers, silybums are suitable for growing in a mixed or herbaceous border or a gravel garden.

耐寒性（英語）: Fully hardy.

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繁殖（英語）: Sow seed in situ in late spring or early summer and thin seed-lings to 60cm (24in) apart. To grow for foliage effect alone, sow in a cold green-house in late winter or very early spring; prick out into 9cm (3 1/2in) containers and grow on to plant out in late spring.

病害虫（英語）: Prone to slug and snail damage.

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更新情報: 作成: 2010-06-04 18:58; 更新: 2020-07-05 11:42

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