1. Family: Asteraceae Bercht. & J.Presl
    1. Ageratina Spach

      1. This genus is accepted, and is native to Southern America and Northern America..

    [FTEA]

    Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

    Habit
    Perennial herbs or shrubs
    Leaves
    Leaves opposite
    Inflorescences
    Inflorescence corymbose; involucres campanulate; phyllaries in 2–3 series, sub-equal, often costate; receptacle slightly convex, epaleate
    Corolla
    Corollas with slender tube and campanulate limb
    Anthers
    Apical anther appendages large, ovate-oblong.
    Style
    Style base enlarged, arms linear, papillate
    Fruits
    Achenes black, prismatic or fusiform, 5-ribbed; carpopodium large, symmetrical; pappus of usually deciduous barbellate bristles.

    Images

    Distribution

    Native to:

    Alabama, Argentina Northwest, Arizona, Arkansas, Bahamas, Bolivia, California, Chile Central, Chile North, Colombia, Colorado, Connecticut, Costa Rica, Cuba, Delaware, District of Columbia, Dominican Republic, Ecuador, El Salvador, Florida, Georgia, Guatemala, Guyana, Haiti, Honduras, Idaho, Illinois, Indiana, Iowa, Jamaica, Kansas, Kentucky, Louisiana, Maine, Maryland, Masachusettes, Mexican Pacific Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Nicaragua, North Carolina, North Dakota, Northwest Territorie, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Panamá, Pennsylvania, Peru, Puerto Rico, Québec, Rhode I., South Carolina, South Dakota, Tennessee, Texas, Utah, Venezuela, Vermont, Virginia, Washington, West Virginia, Wisconsin

    Introduced into:

    Algeria, Assam, Austria, Azores, Belgium, Bermuda, Canary Is., Cape Provinces, Cape Verde, China South-Central, China Southeast, Corse, East Aegean Is., East Himalaya, France, Germany, Greece, Hawaii, Hungary, India, Jawa, Korea, Kriti, KwaZulu-Natal, Laos, Lebanon-Syria, Madeira, Mauritius, Morocco, Nepal, New South Wales, Norfolk Is., Northern Provinces, Philippines, Poland, Portugal, Queensland, Rodrigues, Réunion, Society Is., South Australia, South China Sea, Spain, Sri Lanka, Victoria, Yugoslavia, Zimbabwe

    Ageratina Spach appears in other Kew resources:

    First published in Hist. Nat. Vég. (Spach) 10: 286 (1841)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

    Literature

    Flora of Tropical East Africa
    • R.M. King & H. Rob., Genera of the Eupatorieae: 42 (1987)
    • Hist. Nat. Veg. Phan. 10: 286. 1841

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0