
1) Asterid dicot genus 2) Genus senecio
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https://www.crosswordclues.com/clue/senecio

Jacobaea L. Senecio species are used as food plants by the larvae of some Lepidoptera species — see list of Lepidoptera that feed on Senecio. Pyrrolizidine alkaloids have been found in Senecio nemorensis and in Senecio cannabifolius var. integrilifolius The name means `old man`. ==Selected species== Formerly in ``Senecio`` ==Synonyms== The...
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http://en.wikipedia.org/wiki/Senecio

• (n.) A very large genus of composite plants including the groundsel and the golden ragwort.
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http://thinkexist.com/dictionary/meaning/senecio/

(California Geranium, Cape Ivy, Cineraria, Dusty Miller, German Ivy, Groundsel, Ragwort, Velvet Geranium) This is a large group of hardy and tender annuals and perennials that may have shrubby, herbaceous, or climbing growth. Senecios are found wild in almost every country, especially in southern Europe; others are found in South Africa, New Zealan...
Found on
http://www.encyclo.co.uk/local/10004
Se·ne'ci·o noun [ Latin , groundsel, lit., an old man. So called in allusion to the hoary appearance of the pappus.]
(Botany) A very large genus of composite plants including the groundsel and the golden ragwort.
Found on
http://www.encyclo.co.uk/webster/S/66

Type: Term Pronunciation: sĕ-nē′sē-ō, -shē-ō Definitions: 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.
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http://www.medilexicon.com/medicaldictionary.php?t=80879

Senecio is a genus of some nine hundred species of plants of the family Compositae, distinguished by five-cleft tubular, central florets, the outer florets being strap-shaped, forming a ray and furnished with pistils only. The involucre is imbricated, with a few smaller scales at the base and the receptacle is naked.
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http://www.probertencyclopaedia.com/browse/BSA.HTM

[
n] - enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weeds
Found on
http://www.webdictionary.co.uk/definition.php?query=Senecio
genus Senecio noun enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weeds
Found on
https://www.encyclo.co.uk/local/20974
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