1. Family: Malvaceae Juss.
    1. Genus: Hibiscus L.
      1. Hibiscus platycalyx Mast.

        This species is accepted, and its native range is S. Ethiopia to Limpopo.

    [FZ]

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

    Habit
    Shrub up to 2 m. tall; branches glabrous to greyish-pubescent.
    Leaves
    Leaf-lamina 5–14 × 2–10 cm., papyraceous, narrowly ovate to broadly ovate (rarely suborbicular), rarely obscurely 3-lobed, stellate-pubescent above, greyish-tomentose beneath, apex acute to rounded sometimes slightly acuminate sometimes mucronate, margin subentire to crenate or serrate, base rounded to cordate 3–7-nerved; petiole up to 8 cm. long, greyish-tomentellous or nearly glabrous; stipules 4–10 mm. long, subulate with expanded base.
    Flowers
    Flowers up to c. 7 cm. in diam., yellow with dark reddish centre, solitary in the axils of the upper leaves and forming short terminal racemes at the ends of the branches; peduncle up to 2 cm. long, greyish-pubescent, 5-angled at the apex, articulated near the base.
    Epicalyx
    Epicalyx of 5 bracts, tomentellous; bracts 15–35 mm. long, very variable in shape as in H. calyphyllus and, while less obviously broadened towards the middle, usually clearly if slightly narrowed towards the base, sometimes with long caudate tips.
    Calyx
    Calyx up to 20 mm. long, accrescent, pubescent; lobes ovate-acute, joined for up to 5–6 mm. at the base.
    Corolla
    Petals up to 6 × 5 cm., obovate, pubescent outside except where overlapping, glabrous within.
    Stamens
    Staminal tube 12–18 mm. long ; free parts of filaments up to 3 mm. long.
    Style
    Style-branches 2–4 mm. long.
    Fruits
    Capsule 2·5 × 2 cm., broadly ovoid, stellate-setulose; valves acute.
    Seeds
    Seeds 5 × 5 mm., reniform, silky-tomentose.
    [FTEA]

    Malvaceae, Bernard Verdcourt & Geoffrey Mwachala. Pavonia, B Verdcourt; Kosteletzkya, OJ Blanchard Jr.; Gossypium, P Fryxell & B Verdcourt. Flora of Tropical East Africa. 2009

    Type
    Lectotype: Tanzania, Mikindani District: Rovuma river, Kirk s.n. (K!), selected by Exell in F.Z. (1961)
    Habit
    Shrub to 3 m tall, stems grey-white, shortly stellate-pubescent when young, becoming glabrous
    Leaves
    Leaves discolorous, narrowly ovate, 2.8–14 × 4.7–5.5 cm, apex acuminate, base shallowly cordate, margins dentate or crenulate, white-stellate-pubescent below, glabrous above; petiole 5–9 cm long, sparsely stellate-pubescent; stipules subulate, 8 mm long, 1 mm wide at base, tapering to a filiform tip
    Flowers
    Flowers solitary in leaf axils; pedicel 1–1.3 cm long, articulated at base, shortly stellate-pubescent; epicalyx of 5 ovate bracts, 2–3 × 1.5–1.8 cm, sparsely stellate-pubescent; calyx lobes triangular, 3–3.5 × 1.5–2.5 cm, sparsely stellate-pubescent outside, glabrous within, fused in the lower half
    Corolla
    Corolla yellow with a maroon patch at base, to 6 cm, pubescent outside, glabrous inside.
    Stamens
    Staminal tube 12–18 mm long; filaments 1–3 mm long; exserted part of styles 2–4 mm long, glabrous
    Fruits
    Capsule conical, 3.6–4 cm long 2.3–2.5 cm diameter, densely stellatesetose.
    Seeds
    Seeds reniform, brown, 5 × 3 mm, tomentose.
    Ecology
    Thicket; 0–150 m
    Distribution
    Flora districts: T6 T8 Range: Mozambique, Zimbabwe, Botswana, South Africa

    Images

    Distribution

    Native to:

    Botswana, Ethiopia, Mozambique, Namibia, Northern Provinces, Tanzania, Zambia, Zimbabwe

    Hibiscus platycalyx Mast. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jul 3, 1979 Kirk, J [s.n.], Mozambique K000240682 syntype
    Jul 3, 1979 Meller, C. J. [s.n.] K000240683
    Jul 2, 1979 Kirk, J. [s.n.] K000240495
    Jan 1, 1978 Torre, A.R. [11823], Mozambique Hibiscus mossambicensis K000240648 isotype

    First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 1: 202 (1868)

    Accepted by

    • Verdcourt, B. & Mwachala, G.M. (2009). Flora of Tropical East Africa, Malvaceae: 1-170.
    • 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.

    Literature

    Kew Backbone Distributions
    • Edwards, S., Tadesse, M. & Hedberg, I. (eds.) (1995). Flora of Ethiopia and Eritrea 2(2): 1-456. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Exell, A.W. & Wild, H. (eds.) (1961). Flora Zambesiaca 1(2): 337-581. Royal Botanic Gardens, Kew.
    Flora of Tropical East Africa
    • K.B. 35: 375 (1980).
    • F.Z. 1(2): 460 (1961)
    • F.T.A. 1: 202 (1868)

    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

    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 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