Senecio


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Related to Senecio: Senecio aureus, Senecio vulgaris

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]

Senecio

a widespread genus of the Asteraceae family. The genus contains more than 1200 species of which at least 25 are known to be poisonous. Some of them are listed here; the toxins are a group of pyrrolizidine alkaloids which cause seneciosis hepatic injury, and the dummy syndrome, jaundice, emaciation and photosensitization; includes S. abyssinicus, S. alpinus, S. biligulatus, S. bipinnatisectus (Australian fireweed), S. braziliensis, S. burchelii, S. cineraria (dusty miller), S. cisplatinus, S. cunninghamii, S. desfontainei, S. desiderabilis, S. erraticus, S. glabellus, S. harvieanus, S. heterotrichus, S. integerrimus, S. integrifolius (fleawort), S. isatideus (Dan's cabbage), S. jacobaea (ragwort, tansy ragwort), S. latifolius, S. lautus, S. linearifolius (S. australis, fireweed), S. longilobus (woolly groundsel), S. madagascariensis (fireweed), S. magnificus (tall yellowtop), S. moorei, S. oxyphyllus, S. plattensis, S. pterophorus (African daisy), S. quadridentatus (cotton fireweed), S. raphanifolius (gantho metho), S. retrorsus (ragwort), S. riddellii (Riddell's groundsel), S. ruwenzoriensis, S. scleratus, S. selloi, S. spartioides (broom groundsel), S. spathulatus, S. squalidus (Oxford ragwort), S. tweediei, S. vernalis, S. vulgaris (groundsel).
References in periodicals archive ?
The essential oil of all the parts of Senecio graciliflorus DC was subjected to screening for the possible antioxidant activity by two known complementary methods namely DPPH free radical and hydroxyl radical (OH) scavenging assays.
The students recognized in Senecio that Klee practiced design in his use of repeated colors and shapes, incorporated a focal point and used strong painting techniques such as the layering of paint to add interest to the painting.
com), for example, looks right at home in front of a traditional house, yet is fresh, modern, and water-wise, with bands of blue Senecio mandraliscae, golden Stipa tenuissima, and 'Big Red' kangaroo paws framing the entry.
Many weed species are extremely tough - ragwort and Senecio can complete their life cycles even when uprooted.
Tenders are invited for Supply of Phosphoric Sabal serrulata Sabina, Senega, Sarsaparilla , Secale cornutum, Selenium, Senecio aureus, Sepia, Silicea,Staphysagria,Sticta pulmonaria, Stramonium,Sabadilla,Sulphur,Sulphuric acid, Syphilinum, Syzygium jambolanum, Tabacum, Tarentula cubensis,
Additional individuals collected on Bidens, Schkuhria, Senecio and Stevia in several Mexican localities, and kept in the collection generale d'aphides of the Museum national d'Histoire naturelle (Paris, France), were studied; these specimens had been provisionally identified by the Prof.
In vitro cytotoxic effects of Senecio stabianus Lacaita (Asteraceae) on human cancer cell lines'.
flava Calder & Taylor, Saxifraga taylori Calder & Savile, Senecio moresbiensis (Calder & Tayl.
Senecio jacobaea ydi'r enw gwyddonol ar lysiau'r gingroen, y 'common ragwort' yn Saesneg.
More than 50 years after the eruption of Paricutin Volcano ended, most arenales have developed scattered vegetation consisting of isolated patches of a single or few individuals of any of three species of shrubs: Eupatarium glabratum, Senecio stoechadiformis, and Senecio salignus, together with [less than or equal to] 46 herbaceous species (Lindig-Cisneros et al.