Senecio L.
  • Sp. Pl. 2: 866 (1753) 


Cite taxon page as 'WFO (2025): Senecio L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000035060. Accessed on: 04 Jun 2025'

Local Descriptions

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General Information

Heads radiate or sometimes discoid, the rays pistillate and fertile, yellow to orange or occasionally reddish, invol bracts ± herbaceous, essentially equal, uniseriate or subbiseriate, often with some bracteoles at base; receptacle flat or convex, naked; disk- fls perfect and fertile, yellow to orange or reddish; style-branches flattened, truncate, penicillate; achenes subterete, 5–10-nerved; pappus of numerous, usually white, entire or rarely barbellulate capillary bristles; herbs (ours) or sometimes woody plants, with alternate (or all basal), entire to variously dissected lvs and mostly small to medium-sized heads. 1000+, cosmop. Spp. 4–14 ill- defined, their chromosomes also subject to miscount because of B-chromosomes.

  • Provided by: [C].Northeastern Flora
    • Source: [
    • 6
    • ]. 

    Morphology

    Flowers mostly yellow, sometimes purple or reddish; anthers ecaudate, obtuse or sagittate at base, appendiculate at apex; style branches obtuse or truncate with a ring of hairs and stigmatic lines Achenes cylindrical, ellipsoid or obovoid, with a pappus of fine bristles. Capitula discoid or radiate, usually stalked, solitary or in groups which often form corymbose cymes; involucre usually with a single row of phyllaries subtended by a small calyculus of much smaller bracts; phyllaries free or rarely connate, with membranous or scarious margin Inflorescence from solitary capitula to very compound many-headed cymes or panicles Leaves usually alternate, very variable Annual or perennial herbs or shrubs, sometimes scandent

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Herbes'annuelles ou vivaces rhizomateuses ou parfois tubereuses, souvent géofrutex, plus rarement arbustes, petits arbres ou lianes; tiges dressées, décombantes ou volubiles.'Feuilles'alternes, simples, entières ou ± profondément découpées-pennées, pétiolées ou sessiles, souvent auriculées à la base, très rarement peltées, penninerves ou rarement parallèlinerves, espacées sur la tige ou rapprochées en rosettes basilaires ou en rosettes sommitales.'Capitules'hétérogames et radiés ou homogames et discoïdes, habituellement pédonculés, solitaires ou plus souvent groupés en cymes corymbiformes ou thyrsiformes; involucre caliculé, hémisphérique, campanulé à cylindrique; bractées involucrales 1-sériées, libres ou rarement ± connées, herbacées ou coriaces, à marge scarieuse ou membraneuse.'Fleurs'ligulées, femelles, généralement bien visibles, jaunes ou brunâtres.'Fleurs'centrales discoïdes, tubuleuses, campanulées ou ± infundibuliformes dans la partie supérieure ou rarement cylindriques jusqu'au sommet, jaunes ou rarement brunâtres, pourpres à rougeâtres, 5-lobées au sommet. Anthères linéaires ou oblongues, obtuses ou sagittées à la base, appendiculées au sommet; anthéropodes courts ou longs, linéaires ou s'élargissant vers la base; style bifide au sommet à branches tronquées au sommet et dépourvues d'appendice.'Akènes cylindriques, ellipsoïdaux à obovoïdes, glabres à indumentés; pappus sétacé, blanc ou plus rarement jaunâtre; soies scabres ou barbelées.\n\t\t\t\tLectotype : Senecio vulgaris L.\n\t\t\t\tTrès grand genre cosmopolite, comprenant plus de 1000 espèces. Dans la Flore d'Afrique centrale: 47 espèces et 6 variétés.

  • Provided by: [B].Flore d'Afrique Centrale
    • Source: [
    • 14
    • ]. 
    Flore d'Afrique CentraleMorphology

    Herbes'annuelles ou vivaces rhizomateuses ou parfois tubereuses, souvent géofrutex, plus rarement arbustes, petits arbres ou lianes; tiges dressées, décombantes ou volubiles.'Feuilles'alternes, simples, entières ou ± profondément découpées-pennées, pétiolées ou sessiles, souvent auriculées à la base, très rarement peltées, penninerves ou rarement parallèlinerves, espacées sur la tige ou rapprochées en rosettes basilaires ou en rosettes sommitales.'Capitules'hétérogames et radiés ou homogames et discoïdes, habituellement pédonculés, solitaires ou plus souvent groupés en cymes corymbiformes ou thyrsiformes; involucre caliculé, hémisphérique, campanulé à cylindrique; bractées involucrales 1-sériées, libres ou rarement ± connées, herbacées ou coriaces, à marge scarieuse ou membraneuse.'Fleurs'ligulées, femelles, généralement bien visibles, jaunes ou brunâtres.'Fleurs'centrales discoïdes, tubuleuses, campanulées ou ± infundibuliformes dans la partie supérieure ou rarement cylindriques jusqu'au sommet, jaunes ou rarement brunâtres, pourpres à rougeâtres, 5-lobées au sommet. Anthères linéaires ou oblongues, obtuses ou sagittées à la base, appendiculées au sommet; anthéropodes courts ou longs, linéaires ou s'élargissant vers la base; style bifide au sommet à branches tronquées au sommet et dépourvues d'appendice.'Akènes cylindriques, ellipsoïdaux à obovoïdes, glabres à indumentés; pappus sétacé, blanc ou plus rarement jaunâtre; soies scabres ou barbelées.\n\t\t\t\tLectotype : Senecio vulgaris L.\n\t\t\t\tTrès grand genre cosmopolite, comprenant plus de 1000 espèces. Dans la Flore d'Afrique centrale: 47 espèces et 6 variétés.

    Northeastern FloraGeneral Information

    Heads radiate or sometimes discoid, the rays pistillate and fertile, yellow to orange or occasionally reddish, invol bracts ± herbaceous, essentially equal, uniseriate or subbiseriate, often with some bracteoles at base; receptacle flat or convex, naked; disk- fls perfect and fertile, yellow to orange or reddish; style-branches flattened, truncate, penicillate; achenes subterete, 5–10-nerved; pappus of numerous, usually white, entire or rarely barbellulate capillary bristles; herbs (ours) or sometimes woody plants, with alternate (or all basal), entire to variously dissected lvs and mostly small to medium-sized heads. 1000+, cosmop. Spp. 4–14 ill- defined, their chromosomes also subject to miscount because of B-chromosomes.

    Plants Of the World Online Portal - FTEAMorphology

    Flowers mostly yellow, sometimes purple or reddish; anthers ecaudate, obtuse or sagittate at base, appendiculate at apex; style branches obtuse or truncate with a ring of hairs and stigmatic lines Achenes cylindrical, ellipsoid or obovoid, with a pappus of fine bristles. Capitula discoid or radiate, usually stalked, solitary or in groups which often form corymbose cymes; involucre usually with a single row of phyllaries subtended by a small calyculus of much smaller bracts; phyllaries free or rarely connate, with membranous or scarious margin Inflorescence from solitary capitula to very compound many-headed cymes or panicles Leaves usually alternate, very variable Annual or perennial herbs or shrubs, sometimes scandent Achenes cylindrical, ellipsoid or obovoid, with a pappus of fine bristles. Capitula discoid or radiate, usually stalked, solitary or in groups which often form corymbose cymes; involucre usually with a single row of phyllaries subtended by a small calyculus of much smaller bracts; phyllaries free or rarely connate, with membranous or scarious margin Inflorescence from solitary capitula to very compound many-headed cymes or panicles Leaves usually alternate, very variable Annual or perennial herbs or shrubs, sometimes scandent

    Distribution Map

     
    • Native distribution
    • Introduced distribution
    Found in
    • Africa East Tropical Africa Kenya
    • Tanzania
    • Uganda
    • Macaronesia Azores
    • Canary Is.
    • Madeira
    • Selvagens
    • Middle Atlantic Ocean St.Helena
    • Northeast Tropical Africa Chad
    • Eritrea
    • Ethiopia
    • Somalia
    • Sudan
    • Northern Africa Algeria
    • Egypt
    • Libya
    • Morocco
    • Tunisia
    • South Tropical Africa Angola
    • Malawi
    • Mozambique
    • Zambia
    • Zimbabwe
    • Southern Africa Botswana
    • Cape Provinces
    • Free State
    • KwaZulu-Natal
    • Lesotho
    • Namibia
    • Northern Provinces
    • Swaziland
    • West Tropical Africa Benin
    • Guinea
    • Mali
    • Mauritania
    • Niger
    • Nigeria
    • Senegal
    • Sierra Leone
    • West-Central Tropical Africa Burundi
    • Cameroon
    • Central African Republic
    • Rwanda
    • Zaire
    • Western Indian Ocean Comoros
    • Madagascar
    • Mauritius
    • Rodrigues
    • Réunion
    • Antarctic Subantarctic Islands Falkland Is.
    • Asia-Temperate Arabian Peninsula Gulf States
    • Kuwait
    • Oman
    • Saudi Arabia
    • Yemen
    • Caucasus North Caucasus
    • Transcaucasus
    • China China North-Central
    • China South-Central
    • China Southeast
    • Hainan
    • Inner Mongolia
    • Manchuria
    • Qinghai
    • Tibet
    • Xinjiang
    • Eastern Asia Japan
    • Korea
    • Taiwan
    • Middle Asia Kazakhstan
    • Kirgizistan
    • Tadzhikistan
    • Turkmenistan
    • Uzbekistan
    • Mongolia Mongolia
    • Russian Far East Amur
    • Khabarovsk
    • Kuril Is.
    • Primorye
    • Sakhalin
    • Siberia Altay
    • Buryatiya
    • Chita
    • Irkutsk
    • Krasnoyarsk
    • Tuva
    • West Siberia
    • Yakutskiya
    • Western Asia Afghanistan
    • Cyprus
    • East Aegean Is.
    • Iran
    • Iraq
    • Lebanon-Syria
    • Palestine
    • Sinai
    • Turkey
    • Asia-Tropical Indian Subcontinent Assam
    • Bangladesh
    • East Himalaya
    • India
    • Nepal
    • Pakistan
    • Sri Lanka
    • West Himalaya
    • Indo-China Cambodia
    • Laos
    • Myanmar
    • Thailand
    • Vietnam
    • Malesia Jawa
    • Lesser Sunda Is.
    • Philippines
    • Sulawesi
    • Sumatera
    • Papuasia New Guinea
    • Australasia Australia New South Wales
    • Norfolk Is.
    • Northern Territory
    • Queensland
    • South Australia
    • Tasmania
    • Victoria
    • Western Australia
    • New Zealand Antipodean Is.
    • Chatham Is.
    • Kermadec Is.
    • New Zealand North
    • New Zealand South
    • Europe Eastern Europe Baltic States
    • Belarus
    • Central European Russia
    • East European Russia
    • Krym
    • North European Russia
    • Northwest European Russia
    • South European Russia
    • Ukraine
    • Middle Europe Austria
    • Belgium
    • Czechoslovakia
    • Germany
    • Hungary
    • Netherlands
    • Poland
    • Switzerland
    • Northern Europe Denmark
    • Finland
    • Føroyar
    • Great Britain
    • Iceland
    • Ireland
    • Norway
    • Sweden
    • Southeastern Europe Albania
    • Bulgaria
    • Greece
    • Italy
    • Kriti
    • Romania
    • Sicilia
    • Turkey-in-Europe
    • Yugoslavia
    • Southwestern Europe Baleares
    • Corse
    • France
    • Portugal
    • Sardegna
    • Spain
    • Northern America Eastern Canada Ontario
    • Mexico Mexico Central
    • Mexico Gulf
    • Mexico Northeast
    • Mexico Northwest
    • Mexico Southeast
    • Mexico Southwest
    • North-Central U.S.A. Iowa
    • Kansas
    • Minnesota
    • Nebraska
    • North Dakota
    • Oklahoma
    • South Dakota
    • Northwestern U.S.A. Colorado
    • Idaho
    • Montana
    • Oregon
    • Washington
    • Wyoming
    • South-Central U.S.A. New Mexico
    • Texas
    • Southwestern U.S.A. Arizona
    • California
    • Nevada
    • Utah
    • Subarctic America Alaska
    • Northwest Territories
    • Yukon
    • Western Canada Alberta
    • British Columbia
    • Manitoba
    • Saskatchewan
    • Pacific South-Central Pacific Pitcairn Is.
    • Tubuai Is.
    • Southern America Brazil Brazil Northeast
    • Brazil South
    • Brazil Southeast
    • Brazil West-Central
    • Central America Costa Rica
    • Guatemala
    • Honduras
    • Panamá
    • Northern South America Venezuela
    • Southern South America Argentina Northeast
    • Argentina Northwest
    • Argentina South
    • Chile Central
    • Chile North
    • Chile South
    • Paraguay
    • Uruguay
    • Western South America Bolivia
    • Colombia
    • Ecuador
    • Peru
    Introduced into
    • Africa West-Central Tropical Africa Congo
    • Antarctic Subantarctic Islands South Georgia
    • Tristan da Cunha
    • Asia-Temperate Russian Far East Kamchatka
    • Magadan
    • Northern America Eastern Canada Labrador
    • New Brunswick
    • Newfoundland
    • Nova Scotia
    • Prince Edward I.
    • Québec
    • North-Central U.S.A. Illinois
    • Missouri
    • Wisconsin
    • Northeastern U.S.A. Connecticut
    • Indiana
    • Maine
    • Masachusettes
    • Michigan
    • New Hampshire
    • New Jersey
    • New York
    • Ohio
    • Pennsylvania
    • Rhode I.
    • Vermont
    • West Virginia
    • Southeastern U.S.A. Alabama
    • Delaware
    • District of Columbia
    • Florida
    • Georgia
    • Kentucky
    • Louisiana
    • Maryland
    • Mississippi
    • North Carolina
    • South Carolina
    • Tennessee
    • Virginia
    • Subarctic America Greenland
    • Nunavut
    • Pacific North-Central Pacific Hawaii
    • Southern America Caribbean Bermuda
    • Cuba
    • Dominican Republic
    • Haiti
    • Jamaica
    • Central America El Salvador
    • Southern South America Juan Fernández Is.

    Included Species

      Bibliography

     Information From

    Asteraceae
    https://about.worldfloraonline.org/tens/the-international-compositae-alliance
    World Flora Online Data. 2022.
    • A CC0 1.0 Universal (CC0 1.0).
    Flore d'Afrique Centrale
    • B http://creativecommons.org/licenses/by/4.0/ Attribution 4.0 International (CC BY 4.0)
    Northeastern Flora
    World Flora Online Data. 2024.
    • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Plants Of the World Online Portal - FTEA
    World Flora Online Data. 2024.
    • D
    The World Checklist of Vascular Plants (WCVP)
    https://www.kew.org/
    The World Checklist of Vascular Plants (WCVP) Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; https://doi.org/10.34885/jdh2-dr22 Retrieved 28 September 2023.
    • E All Rights Reserved
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2024.
    • F All Rights Reserved
    • G CC0 1.0 Universal (CC0 1.0).