1. Family: Asteraceae Bercht. & J.Presl
    1. Genus: Ageratum L.
      1. Ageratum houstonianum Mill.

        This species is accepted, and its native range is Mexico to Central America. It is used to treat unspecified medicinal disorders.

    [FTEA]

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

    Habit
    Usually annual or short-lived perennial, erect to decumbent, simple or sparingly branched herb or sub-shrub to 1 m; stem terete, whitish pubescent and with some long, simple hairs.
    Leaves
    Leaves opposite to occasionally sub-opposite above, with pubescent petiole 0.4–3.2 cm, blade triangular to ovate, 1.3–5.8 cm long, 1–5.3 cm wide, base cordate to abruptly truncate, margins crenate to serrate, apex acute or obtuse, dark green, moderately hirsute above, a little paler, glabrous to sparsely hirsute beneath.
    Inflorescences
    Infloresence terminal, ± 7–60 heads borne in tight cymose clusters on pubescent and hirsute bracteolate common stalks; capitula 4–7 mm diameter, stalks of individual capitula 0–6 mm extending to 12 mm in fruit; phyllaries green, lanceolate, usually 2-ribbed, outer series 3.5–4.5 mm long, 0.8–0.9 mm wide, inner slightly narrower, margins entire, apex acuminate, often purple, hirsute and glandular-stipitate especially basally.
    Florets
    Florets 70–103, corolla-funnel shaped, 2.5–3 mm long, tube white, limb blue, mauve, or white, lobes acute, sparsely to moderately short-pubescent; anthers basally subcordate; style-arms blue, mauve or white, clavate, exserted for ± 2.5 mm, papillate.
    Fruits
    Achenes 1.2–2 mm long, sub-glabrous, with occasional setae between ribs; pappus 0–3 mm long, of 5 free triangular scales, lacerate, acuminate into a slender awn with scabrid margins, or pappus awnless, scales coroniform, truncate, lacerate, or occasionally pappus absent.
    Figures
    Fig. 181/9 (page 828).
    [UPB]

    The Useful Plants of Boyacá project

    Distribution
    Introduced in Colombia.
    Ecology
    Alt. 1300 - 2625 m.
    [CPLC]

    Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

    Distribution
    Adventicia en Colombia; Alt. 1300 - 2625 m.; Andes, Sierra Nevada de Santa Marta.
    Habit
    Hierba, subarbusto, arbusto
    Conservation
    No Evaluada
    [UPB]
    Unspecified Medicinal Disorders
    Medicinal (State of the World's Plants 2016, Instituto Humboldt 2014).

    Images

    Distribution

    Native to:

    Belize, El Salvador, Guatemala, Honduras, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest

    Introduced into:

    Alabama, Azores, Belarus, Belgium, Benin, Bolivia, Bulgaria, Cameroon, Canary Is., Cape Provinces, Chad, China North-Central, China South-Central, China Southeast, Colombia, Connecticut, Costa Rica, Cuba, East Himalaya, Ecuador, Egypt, Ethiopia, Fiji, Florida, France, Gabon, Georgia, Germany, Great Britain, Hainan, Hawaii, Hungary, India, Italy, Jamaica, Jawa, Kazakhstan, Korea, Krym, KwaZulu-Natal, Mali, Masachusettes, Mauritius, Myanmar, Nepal, New Caledonia, New South Wales, New York, Nicaragua, North Carolina, Northern Provinces, Pakistan, Panamá, Peru, Philippines, Poland, Portugal, Primorye, Queensland, Society Is., South Carolina, Sri Lanka, Sudan, Sumatera, Suriname, Swaziland, Taiwan, Texas, Transcaucasus, Trinidad-Tobago, Turkmenistan, Ukraine, Uzbekistan, Venezuela, Vietnam, Yugoslavia, Zimbabwe

    Common Names

    Spanish
    Marubio, marrubio.

    Ageratum houstonianum Mill. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    May 1, 1993 Mathews [1751], Peru K000488664
    May 1, 1993 K000488920 Unknown type material
    Jan 1, 1993 Daramola, B.O. [41023], Cameroon K000051821

    First published in Gard. Dict. ed. 8: n.° 2 (1768)

    Accepted by

    • Pruski, J.F. (ed.) (2018). Flora Mesoamericana 5(2): 1-608. Universidad Nacional Autónoma de México, México, D.F.
    • Balkrishna, A. (2018). Flora of Morni Hills (Research & Possibilities): 1-581. Divya Yoga Mandir Trust.
    • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.
    • Werier, D. (2017). Catalogue of the Vascular plants of New York state Memoirs of the Torrey Botanical Club 27: 1-542.
    • Probatova, N.S. & al. (2006). Flora Rossiiskogo Dal'nego Vostoka. Dopolneniya i izmeneniya k izdaniyu Sosudistye rasteniya sovetskogo Dal'nego Vostoka t. 1-8 (1985-1996): 1-454. Russian academy of sciences Far Eastern branch.

    Literature

    Useful Plants of Boyacá Project
    • Kew Medicinal Plant Names Services (MPNS) https://www.kew.org/science/data-and-resources/tools-and-services/medicinal-plant-names-services in The State of the World’s Plants Report–2016. (2016). Royal Botanic Gardens, Kew https://stateoftheworldsplants.org
    • Instituto de Investigación de Recursos Biológicos Alexander von Humbodlt (2014). Plantas alimenticias y medicinales nativas de Colombia. 2567 registros, aportados por: Castellanos, C. (Contacto del recurso), Valderrama, N. (Creador del recurso, Autor), Castro, C. (Proveedor de metadatos), Bernal, Y. (Autor), García, N. (Autor). Versión 11.0. http://i2d.humboldt.org.co/ceiba/resource.do?r=ls_colombia_magnoliophyta_2014
    Kew Backbone Distributions
    • Pruski, J.F. (ed.) (2018). Flora Mesoamericana 5(2): 1-608. Universidad Nacional Autónoma de México, México, D.F.
    • Balkrishna, A. (2018). Flora of Morni Hills (Research & Possibilities): 1-581. Divya Yoga Mandir Trust.
    • Werier, D. (2017). Catalogue of the Vascular plants of New York state Memoirs of the Torrey Botanical Club 27: 1-542.
    • Probatova, N.S. & al. (2006). Flora Rossiiskogo Dal'nego Vostoka. Dopolneniya i izmeneniya k izdaniyu Sosudistye rasteniya sovetskogo Dal'nego Vostoka t. 1-8 (1985-1996): 1-454. Russian academy of sciences Far Eastern branch.
    Flora of Tropical East Africa
    • Agnew, A.D.Q. & Agnew, S., Upland Kenya Wild Flowers, ed. 2: 204 (1994).
    • D.J.N. Hind in Fl. Mascar. 109: 234, t. 81/9 (1993).
    • Lisowski, Asterac. Afr. Centr.: 477, fig. 96 (1991).
    • H.M. Burkill, Useful Pl. W. Trop. Afr. ed. 2, 1: 445 (1985).
    • M.F. Johnson in Ann. Missouri Bot. Gard. 58(1): 21 (1971).
    • C.D. Adams in Flora of West Tropical Africa ed. 2, 2: 287 (1963).
    • B.L. Rob. in Contr. Gray Herb. 68: 6 (1923).
    • B.L. Rob. in Proc. Amer. Acad. Arts 51: 532 (1916)
    • Mill., Gard. Dict. ed. 8, no. 2 (1768).

    Sources

    Catálogo de Plantas y Líquenes de Colombia
    http://creativecommons.org/licenses/by-nc-sa/3.0

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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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

    Useful Plants of Boyacá Project
    ColPlantA database
    http://creativecommons.org/licenses/by-nc-sa/3.0
    http://creativecommons.org/licenses/by/3.0/