1. Family: Orobanchaceae Vent.
    1. Buttonia McKen ex Benth.

      1. This genus is accepted, and its native range is Kenya to S. Africa.

    [FTEA]

    Scrophulariaceae, S.A. Ghazanfar, F.N. Hepper & D. Philcox. Flora of Tropical East Africa. 2008

    Habit
    Slender perennial climbing shrubs
    Leaves
    Leaves opposite, pinnatisect or lobed, petiolate
    Flowers
    Flowers solitary, axillary, pedicellate, bracteate; bracts deciduous
    Calyx
    Calyx campanulate, 5(–4)-lobed, inflated in fruit
    Corolla
    Corolla 5-lobed; lobes rounded, subequal; tube funnel-shaped with wide throat, somewhat curved
    Stamens
    Stamens 4, didynamous, included; filaments linear; anthers connivent in pairs, bithecal with one empty theca or empty theca absent on lower stamens
    Gynoecium
    Ovary bilocular; ovules numerous
    Fruits
    Capsule enclosed in the persistent calyx
    Seeds
    Seeds numerous, conicaloblong, truncate at both ends.
    [FZ]

    Scrophulariaceae, D. Philcox. Flora Zambesiaca 8:2. 1990

    Habit
    Perennial, slender, climbing shrub.
    Leaves
    Leaves opposite, pinnatisect, petiolate.
    Flowers
    Flowers solitary, axillary, pedicellate, bracteate; bracts deciduous.
    Calyx
    Calyx (4)5-lobed, campanulate, inflated in fruit; lobes ovate, shorter than tube.
    Corolla
    Corolla 5-lobed; lobes rounded, subequal; tube funnel-shaped with wide throat, somewhat curved.
    Stamens
    Stamens 4, didynamous, included; filaments linear; anthers connivent in pairs, bithecal with one empty theca or empty theca absent on lower stamens.
    Ovary
    Ovary bilocular.
    Ovules
    Ovules numerous.
    Fruits
    Capsule globose, enclosed in persistent calyx.
    Seeds
    Seeds numerous, truncate at both ends, conical-cylindric.

    Images

    Distribution

    Native to:

    Kenya, KwaZulu-Natal, Mozambique, Northern Provinces, Swaziland, Tanzania, Zimbabwe

    Buttonia McKen ex Benth. appears in other Kew resources:

    First published in Hooker's Icon. Pl. 11: 63 (1871)

    Accepted by

    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

    Literature

    Flora Zambesiaca
    • Hiern in F.C.4, 2: 384 (1904).
    • in Hook., Ic. Pl. 11: 63, t. 1080 (1871).
    Flora of Tropical East Africa
    • F.T.A. 4(2): 438 (1906)
    • Hook., Ic. Pl. 11: 63, t. 1080 (1871)

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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

    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