| 释义 |
Senecio
senecio (sɪˈniːʃɪəʊ) n, pl -cios (Plants) any plant of the genus Senecio, including groundsels, ragworts, and cineraria: family Asteraceae (composites)Thesaurus| Noun | 1. |  Senecio - enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weedsgenus Senecioasterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubsaster family, Asteraceae, Compositae, family Asteraceae, family Compositae - plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnianodding groundsel, Senecio bigelovii - plant with erect leafy stems bearing clusters of rayless yellow flower heads on bent individual stalks; moist regions of southwestern United StatesCineraria maritima, Senecio cineraria, dusty miller - stiff much-branched perennial of the Mediterranean region having very white woolly stems and leavesSenecio doublasii, threadleaf groundsel - bluish-green bushy leafy plant covered with close white wool and bearing branched clusters of yellow flower heads; southwestern United States; toxic to range livestockbutterweed, Senecio glabellus, ragwort - American ragwort with yellow flowersbenweed, ragweed, ragwort, Senecio jacobaea, tansy ragwort - widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantitygroundsel, Senecio vulgaris - Eurasian weed with heads of small yellow flowers |
Senecio
Senecio a genus of plants of the family Compositae. Members are perennial, annual, or biennial herbs, shrubs, and arborescent plants (including rosetted trees). The flowers are yellow, orange, purple, or violet; the marginal ones are ligulate and carpellary and the median ones, tubular monoclinous and gathered into calathides; the involucres are for the most part monostichous. There are more than 1,500 (according to other data, as many as 3,000) species; they are ubiquitous, but mainly found in South Africa, the Mediterranean, and temperate regions of Asia and America. There are approximately 100 species in the USSR. Senecio vulgaris grows mainly as a weed near dwellings, in gardens, and in planted fields. S. jacobaea is found along forest edges and in shrubbery, wastelands, and fields. S. rhombifolius (formerly S. platyphyllus) grows in the Caucasus and is a medicinal plant; all its parts contain alkaloids (platyphyllin and sarracin, for example) that are used as spasmolytic and analgesic agents. Many species of Senecio are cultivated as ornamentals; some are sometimes assigned to the genus Cineraria. REFERENCEShishkin, B. K. “Rod Senecio L.” In Flora SSSR, vol. 26. Moscow-Leningrad, 1961.T. V. EGOROVA Senecio
Senecio (sĕ-nē'sē-ō, -shē-ō), 1. A large genus of plants (family Compositae), many species of which contain alkaloids that produce hepatic necrosis. 2. A common weed of the eastern U.S., formerly used in the treatment of amenorrhea and other menstrual irregularities. [L. a plant, groundsel, fr. senecio, an old man] SenecioenUS
Related to Senecio: Senecio aureus, Senecio vulgarisSynonyms for Senecionoun enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weedsSynonymsRelated Words- asterid dicot genus
- aster family
- Asteraceae
- Compositae
- family Asteraceae
- family Compositae
- nodding groundsel
- Senecio bigelovii
- Cineraria maritima
- Senecio cineraria
- dusty miller
- Senecio doublasii
- threadleaf groundsel
- butterweed
- Senecio glabellus
- ragwort
- benweed
- ragweed
- Senecio jacobaea
- tansy ragwort
- groundsel
- Senecio vulgaris
|