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  1. Family: Rubiaceae Juss.
    1. Genus: Spermacoce L.
      1. Spermacoce annua Verdc.

        This species is accepted, and its native range is W. Zambia.

    [FZ]

    Rubiaceae, B. Verdcourt. Flora Zambesiaca 5:1. 1989

    Habit
    Erect gregarious ephemeral herb 15–20 cm. tall with simple or sparsely branched ± 4-angled graceful chestnut stems covered with ± spreading white hairs.
    Leaves
    Leaves 1.4–2.8 cm. x 0.5–1.3 mm., linear, acute at the apex, attenuate at the base, densely covered with ± spreading white hairs; stipule-sheath narrow, 2 mm. long with 3–5 setiform pilose fimbriae (2)3–6.5 mm. long.
    Flowers
    Flowers several in a terminal head supported by an involucre of 6–8 bract-like leaves, the apical 3–4 intern odes entirely suppressed.
    Calyx
    Calyx tube 1 mm. long, obconic, hairy at the apex; lobes 2, 3–5 mm. long, linear, pilose.
    Corolla
    Corolla blue; tube 4.3 mm. long, funnel-shaped, glabrous both inside and out; lobes 3 x 2.5 mm., triangular, with white hairs at apex and along middle outside.
    Filaments
    Filaments exserted 1.5 mm.
    Style
    Style 7.5 mm. long, the stigma 0.35 mm. wide.
    Fruits
    Capsule ellipsoid; valves 2 x 1 mm., transversely rugulose, pilose at the apex.
    Seeds
    Ripe seeds not seen.

    Images

    Distribution

    Other Data

    Spermacoce annua Verdc. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Robinson, E. A. [6615], Zambia K000172768 holotype

    Bibliography

    First published in Kew Bull. 30: 316 (1975)

    Accepted by

    • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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