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

        This species is accepted, and its native range is Africa, Arabian Peninsula.

    [FTEA]

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

    Habit
    Annual herb 15–60(–150) cm high; stems often red, branched distally, striate, scabridulous or glabrescent.
    Leaves
    Leaves sessile to pseudopetiolate, spatulate near base of the plant, distal leaves lanceolate, 3–16 cm long, 0.8–3 cm wide, the very base half-amplexicaul, but a narrowly winged pseudopetiole up to 6 cm long present in spatulate leaves, margins denticulate to dentate, apex obtuse to acute but always with a mucro, almost glabrous but scabridulous with some sparse hairs, especially on midrib, veins and margins.
    Capitulum
    Capitula 3.5–7 mm long, several together in terminal cymes, occasionally 2 or more cymes united in a lax leafy panicle; stalks of individual capitula 2–12 mm long, puberulous to pubescent; phyllaries in several series, green, 2–5 mm long, 0.8–2 mm wide, with broad hyaline margins, acute, glabrous or puberulous; receptacle convex to toroid, toothed.
    Florets
    Florets yellow or cream; marginal florets many, tube 1.2–2.3 mm long, distally with minute teeth, style 2.3–4 mm long; central florets 5–8, tube 2–2.8 mm long, lobes 0.6–0.7 mm long; anthers 0.7–0.8 mm long with narrowly triangular appendages, style ± 3.5 mm long.
    Fruits
    Achenes obovoid, flattened, 0.9–1.2 mm long, sparsely pilose to almost glabrous; pappus with white setae 2.5–3.5 mm long.
    Habitat
    River-banks, also on edges of cultivation; swampy sites; 600–2500 m
    Distribution
    K3 T2 T3 T4 T6 T7 T8
    [FWTA]

    Compositae, C. D. Adams. Flora of West Tropical Africa 2. 1963

    Habit
    A perennial herb like the last (Conyza theodori) with shorter greenish involucral bracts forming smaller heads
    Stem
    Stems often purple
    Ecology
    In upland grasslands.
    [FTEA]

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

    Habit
    Perennial herb 0.2–1.2 m high; stem sometimes woody near the base, erect to ascending, simple or branched, cylindrical, striate, hispidulous to pubescent.
    Leaves
    Leaves (at least the proximal ones) spatulate or panduriform, the more distal leaves narrowly elliptic or oblanceolate, 2–20 cm long, 0.5–4 cm wide, the proximal leaves at the base attenuate into a winged pseudopetiole, the very base clasping to half-amplexicaul, the distal leaves sessile and almost entirely semi-amplexicaul, the margins dentate or less often subentire, acute to rounded and mucronate at the apex, hispidulous to pubescent on both surfaces.
    Capitulum
    Capitula 5–10 mm long, in dense half-globose cymes, solitary and terminal or several of these cymes united into a subglobose terminal panicle; stalks of individual capitula 1–4 mm long, occasionally (?at the fruiting stage) lengthening to 25 mm, hispidulous or pubescent; phyllaries 3-seriate, green tipped with reddish or purple, linear-lanceolate, 3–6 mm long, 0.7–1.9 mm wide, the innermost longest, the margins scarious, attenuate at the apex, pubescent but the innermost almost glabrous; receptacle toroid, with small teeth.
    Florets
    Florets white, cream or yellow, the marginal florets female and very many (several hundred), the tube filiform, 1.9–2.2 mm long, with minute teeth, the style 4–5.2 mm long; central florets hermaphrodite, 16–26, tube 3–3.5 mm long, the lobes 0.5–0.8 mm long; anthers 1–1.3 mm long, obtuse at the base, with narrowly triangular appendages; style 4–4.3 mm long, with very short (0.3 mm long) flattened triangular papillose arms.
    Fruits
    Achenes of both types of floret narrowly obovoid, flattened, 1–1.2 mm long, sparsely puberulous; pappus white or silvery, the setae 4.5–6 mm long.
    Habitat
    Grassland, wooded grassland, a weed of cultivation and roadsides, also along streams and in forest margins; 1050–2550 m
    Distribution
    from Cameroon to Sudan and Ethiopia to South Africa K1 K2 K3 K4 K5 K6 T1 T2 T3 T4 U1 U2 U3 U4

    Images

    Distribution

    Native to:

    Angola, Burundi, Cameroon, Canary Is., Cape Provinces, Eritrea, Ethiopia, Gulf of Guinea Is., Kenya, KwaZulu-Natal, Malawi, Morocco, Mozambique, Nigeria, Northern Provinces, Saudi Arabia, Socotra, Somalia, Sudan, Swaziland, Tanzania, Yemen, Zambia, Zaïre, Zimbabwe

    Synonyms

    Other Data

    Erigeron gouanii L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2000 Cheek, M. [8496], Cameroon Conyza gouanii K000746902
    Jan 1, 2000 Cheek, M. [8616], Cameroon Conyza gouanii K000746911
    Jan 1, 1993 Maitland, T.D. [1098], Cameroon Conyza gouanii K000051997
    Jan 1, 1993 Maitland, T.D. [1098], Cameroon Conyza gouanii K000051998
    Schimper [342], Ethiopia Conyza gouanii K000273877
    Schimper [342], Ethiopia Conyza gouanii K000273878
    Schimper [1336], Ethiopia Conyza hochstetterii K000273865
    Schimper [1336], Ethiopia Conyza hochstetterii K000273866
    Schimper [162], Ethiopia Conyza hochstetterii K000273867

    Bibliography

    First published in Mant. Pl.: 469 (1771)

    Not accepted by

    • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands. [Cited as Conyza gouanii.]

    Sources

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

    Flora of West Tropical Africa
    Flora of West Tropical 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 2020. 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 2020. 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