千葉大学東葛キャンパス植物データベース

属名の詳細: Sagittaria [1692]

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属英名: Arrowhead

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科名: Alismataceae

科の和名: オモダカ

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説明（英語）: Genus of 20 species of marginal and submerged, herbaceous aquatic perennials and annuals, found mainly on muddy banks or in shallow water in temperate and tropical Europe, Asia, and North, Central, and South America. The often decorative leaves are aerial, floating, or submerged, and linear to elliptic, lance-shaped, ovate, or arrow-shaped. Panicles or racemes of whorled, 3-petalled, saucer-shaped white flowers are borne in summer. Most are excellent for the margins of a wildlife pool, where their tuberous rootstocks may spread; some (including S. latifolia and S. sagittifolia) produce walnut-sized tubers that attract waterfowl. Grow S. subulata in an aquarium for its attractive submerged leaves. In frost-prone areas, grow tender species in a pool in a cool or temperate greenhouse.

耐寒性（英語）: Fully hardy to frost tender.

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繁殖（英語）: Sow seed as soon as ripe in containers standing in trays of shallow water. Remove runners, or collect and plant overwintering tubers, in spring.

病害虫（英語）: Leaves may be damaged by water-lily aphid.

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備考: オモダカ，クワイ

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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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