| 单词 | meadow rue | |||
| 释义 | meadow ruemeadow ruemeadow ruemead′ow rue`n.
meadow ruemeadow rue,any plant of the genus Thalictrum of the family Ranunculaceae (buttercupbuttercupor crowfoot, common name for the Ranunculaceae, a family of chiefly annual or perennial herbs of cool regions of the Northern Hemisphere. Thought to be one of the most primitive families of dicotyledenous plants, the Ranunculaceae typically have a simple ..... Click the link for more information. family). Most are tall perennials (up to 7 ft/2.1 m high) bearing summer flowers with showy, pendent tassels of long stamens, greenish sepals, and no petals. Meadow rues are found in moist, open places throughout northern temperate regions; in the United States they are especially abundant in the Northeast. A few species are cultivated for ornament. The European herb called ruerue, common name for various members of the family Rutaceae, a large group of plants distributed throughout temperate and tropical regions and most abundant in S Africa and Australia. Most species are woody shrubs or small trees; many are evergreen and bear spines. ..... Click the link for more information. is an unrelated plant. Meadow rue is classified in the division MagnoliophytaMagnoliophyta , division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem). ..... Click the link for more information. , class Magnoliopsida, order Ranunculales, family Ranunculaceae. Meadow Rue(Thalictrum), a genus of perennial herbaceous plants of the Ranunculaceae family. The leaves are regular and pinnatifid. The flowers are small, with a usually four-leaved perianth and numerous long stamens; they are gathered into panicular, umbellate, or racemic inflorescences. There are 120 species in Europe, Asia, America, and Africa. In the USSR there are more than 20 species, of which the most common are yellow meadow rue (T. flavum), found almost everywhere on moist meadows; T. minus, found on dry hillocks, steppes, meadows, and forest borders; and T. aquilegifolium, found in forests and thickets. Several species of meadow rue are cultivated in gardens as ornamentals. REFERENCENevskii, S. A. “Vasilistnik.” In Flora SSSR, vol. 7. Moscow-Leningrad, 1937.meadow rue
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meadow rue - any of various herbs of the genus Thalictrum; sometimes rhizomatous or tuberous perennials found in damp shady places and meadows or stream banks; have lacy foliage and clouds of small purple or yellow flowers