千葉大学東葛キャンパス植物データベース

属名の詳細: Rheum [1961]

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属英名: Rhubarb

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科名: Polygonaceae

科の和名: タデ

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説明（英語）: Genus of about 50 species of rhizomatous, often tough or woody perennials found in a range of habitats, from marshy meadows and streamsides to scrub and rocky slopes, in E. Europe and C. Asia to the Himalayas and China. Unlike R. x hybridum, which is grown for its edible leaf-stalks, the rhubarbs described below are cultivated for their imposing, large, basal leaves and tall flower panicles. A few species from mountainous regions in Asia are dwarf with small flower spikes. The rounded, entire to palmately lobed leaves often emerge from bright red buds; the leaves are sometimes crimson-purple when young, usually with coarse teeth and conspicuous veins and midribs. Large panicles of tiny, petalless, star-shaped flowers are borne on hollow, leafless, flowering stems in summer; they have large, colourful, showy bracts in some species. The flowers are followed by small, triangular, winged, usually brown fruits. Grow rhubarbs near water, or in a moist border or woodland garden. The leaves may cause severe discomfort if ingested.

耐寒性（英語）: Fully hardy.

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繁殖（英語）: Sow seed in containers in a cold frame in autumn. Divide in early spring.

病害虫（英語）: Susceptible to damage by slugs, and prone to crown rot and viruses.

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備考（英語）:

備考: ルバーブ(rhubarb)

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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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