1. Family: Malvaceae Juss.
    1. Genus: Hibiscus L.
      1. Hibiscus nigricaulis Baker f.

        This species is accepted, and its native range is S. DR Congo to S. Africa.

    [FZ]

    Malvaceae, A. W. Exell. Flora Zambesiaca 1:2. 1961

    Habit
    Annual or biennial herb up to 1 (1·5) m. tall; stems ± woody, pale green or brownish-purple, shortly stellate-tomentose and sparsely setose when young, branched from the base.
    Leaves
    Leaves dark green, usually with a purplish margin, minutely pubescent above with stellate or simple hairs, usually minutely stellate-pubescent beneath; lamina of lower leaves 12 × 12 cm., ovate-orbicular in outline, base truncate or slightly cordate, 5-lobed or -angled; lamina of middle leaves ovate in outline, 3–5-palmatisect to -palmatipartite, lobes rhombic, obovate or oblanceolate; lamina of upper leaves 3–6 cm. long, scarcely lobed, lanceolate, margin serrate, base cuneate; petiole up to 12 cm. long, hairy like the stems; stipules c. 10 mm. long, subulate-setose.
    Flowers
    Flowers 3–6 cm. in diam., yellow with dark red centre, solitary, axillary or forming racemes at the apices of the stems; peduncle up to c. 5 mm. long, hairy like the stems, articulated near the base.
    Epicalyx
    Epicalyx of 8–12 bracts; bracts c. 10 mm. long, linear, apices sometimes shortly appendiculate but not manifestly forked, joined at the base.
    Calyx
    Calyx c. 15 mm, long; lobes ovate-lanceolate or triangular, acute, margin tomentellous, midrib with a median gland less conspicuous than that of H. cannabinus, accrescent in fruit and becoming c. 20 mm. long and somewhat woody.
    Corolla
    Petals 2–4 cm. long, obovate.
    Stamens
    Staminal tube c. 6 mm. long; free parts of filaments 0·5 mm. long.
    Style
    Style-branches c. 1 mm. long, stigmas hidden among the anthers.
    Fruits
    Capsule 14–15 × 11–12 mm., ovoid-conical, rostrate, appressed-setose; valves woody.
    Seeds
    Seeds 3–4 × 3 mm., angular-subreniform with minute pectinate scales.

    Images

    Distribution

    Native to:

    Angola, Botswana, Caprivi Strip, KwaZulu-Natal, Malawi, Mozambique, Northern Provinces, Swaziland, Zambia, Zaïre, Zimbabwe

    Common Names

    English
    Wild stockrose

    Hibiscus nigricaulis Baker f. appears in other Kew resources:

    First published in J. Bot. 77: 19 (1939)

    Accepted by

    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.

    Literature

    Kew Backbone Distributions
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Exell, A.W. & Wild, H. (eds.) (1961). Flora Zambesiaca 1(2): 337-581. Royal Botanic Gardens, Kew.
    • Robyns, W. & al. (eds.) (1948-1963). Flore du Congo Belge et du Ruanda-Urundi 1-10.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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

    Plants and People Africa
    Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
    © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/