1. Family: Asteraceae Bercht. & J.Presl
    1. Genus: Erigeron L.
      1. Erigeron karvinskianus DC.

        This species is accepted, and its native range is S. Tropical America.

    [FTEA]

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

    Habit
    Perennial herb 30–75 cm long, procumbent and forming interlaced mats, but with erect flowering branches, stoloniferous (fide Lisowski), densely branched; stems often with a purple tinge, slender, slightly angled, sparsely pilose.
    Leaves
    Leaves alternate or in axillary fascicles, sessile or with petioles to 3 mm long, the proximal leaves 3–5-lobed, with obtuse and mucronate lobes, more distal leaves narrowly elliptic, 0.5–3(–5) cm long, 0.3–1.5(–2) cm wide, cuneate at the base, margins entire or at most with 2 teeth, acute with a callous tip, sparsely pilose on both surfaces, glabrescent, 3-nerved from base.
    Capitulum
    Capitula terminal, usually solitary but occasionally in lax panicles of up to 5 heads, hemispheric, 7–8 mm long, 15–22 mm in diameter; peduncle to 9 cm long, glabrous proximally and becoming pubescent distally; phyllaries 50–80, subequal, lanceolate, 2–4 mm long, 0.3–0.5 mm wide, margins narrowly membranous and minutely serrulate, acuminate, sparsely pilose; receptacle flat or convex.
    Florets
    Ray florets 1-seriate, with cylindric tube, 1–1.5 mm long, rays white above, pink beneath, linear to oblanceolate, 5–6 mm long, 0.5–1 mm wide, obtuse, style 2.2 mm long; disc florets many, yellow, tube 1.5–2.5 mm long, lobes 0.3–0.5 mm long, anthers 1–1.3 mm long, style 2.5–3 mm long.
    Fruits
    Achenes pale brown, ellipsoid, compressed, 1–1.5 mm long, pilose; pappus of white barbellate setae 1.5–3 mm long.
    Figures
    Fig. 101 (page 480).
    Habitat
    Along roadsides, in clearings, on cultivated fields, but usually within the montane forest zone; (850–)1500–2400 m
    Distribution
    K3 K4 K7 T2 T3 T6 T7 U2 originally from Central America but now a widespread weed in the colder and wetter parts of the tropics

    Images

    Distribution

    Native to:

    Colombia, Costa Rica, Guatemala, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Panamá, Venezuela

    Introduced into:

    Algeria, Assam, Austria, Azores, Baleares, California, Canary Is., Chatham Is., China Southeast, Corse, Dominican Republic, East Himalaya, Ecuador, Fiji, France, Germany, Great Britain, Haiti, Hawaii, India, Ireland, Italy, Jamaica, Jawa, Leeward Is., Madeira, Mauritius, Morocco, Myanmar, Nepal, Netherlands, New Caledonia, New South Wales, Norfolk Is., Northern Provinces, Peru, Portugal, Réunion, Sicilia, South Australia, Spain, Sri Lanka, Swaziland, Sweden, Switzerland, Tasmania, Victoria, Western Australia, Windward Is., Zimbabwe

    Erigeron karvinskianus DC. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Balls, E.K. [4383], Mexico K001093128
    Cope, T.A. [RBG 261], United Kingdom K000914445

    First published in Prodr. 5: 285 (1836)

    Accepted by

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

    Literature

    Flora of Tropical East Africa
    • A.J. Scott in Fl. Mascar. 109: 105, t. 33 (1993).
    • Lisowski, Aster. Fl. Afr. Centr. 1: 42 (1991).
    • Blundell, Wild Flow. E Africa: 166, t. 768 (1987).
    • Maquet in Troupin, Fl. Rwanda 3: 576, fig. 176/2 (1985).
    • Wild in Kirkia 10: 34 (1975).
    • DC., Prodr. 5: 285 (1836).

    Sources

    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 2018. 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 2018. 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

    Kew Science Photographs
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/