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  1. Family: Balsaminaceae A.Rich.
    1. Genus: Impatiens Riv. ex L.
      1. Impatiens nana Engl. & Warb.

        This species is accepted, and its native range is SE. Kenya to Tanzania.

    [FTEA]

    Balsaminaceae, C. Grey-Wilson. Flora of Tropical East Africa. 1993

    Habit
    Weakly branched annual or? perennial herb, generally 30–80 cm. tall; stems green or reddish, rooting at the lower nodes, usually rather densely pubescent at the apices but gradually glabrescent with age.
    Leaves
    Leaves spirally arranged, subopposite or in verticils of 3–4 (but then the lower leaves always spirally arranged), sessile, subsessile or the lower leaves with a petiole 0.2–2(–3.2) cm. long; lamina ovate to elliptic-lanceolate or narrowly oblanceolate, 2–9.7 cm. long, 1.3–5.6 cm. broad, the base cuneate to somewhat attenuate, the apex acute to shortly acuminate, sparsely pubescent above, more densely so beneath, especially along the midrib and lateral veins; lateral veins 5–11 pairs; margin serrate to crenate-denticulate.
    Flowers
    Flowers axillary, solitary or in fascicles of 2–3, epedunculate or very occasionally with a very short peduncle ± 1–2 mm. long; flowers pink to purplish, the lateral united petals with a dark magenta spot towards the base, the spur whitish.
    Bracts
    Bracts subulate, 1.5–5 mm. long, pubescent, inconspicuous.
    Pedicel
    Pedicels 2.2–5.2 cm. long, slender, usually pubescent.
    Calyx
    Lateral sepals linear-lanceolate, 4–5 mm. long, 1–2 mm. broad, acute or shortly acuminate, pubescent. Lower sepal navicular, 7–10 mm. long, 3.5–5 mm. deep, abruptly constricted into a 14–20(–25) mm. long curved filiform spur, pubescent.
    Corolla
    Dorsal petal suborbicular, 8–11 mm. long, 12–16 mm. broad, emarginate, dorsally with a narrow crest terminating in a short acute point, pubescent on the crest. Lateral united petals 15–21 mm. long; upper petal of each pair ± ovate or suborbicular to oblong, 9–12 mm. long, 7–9 mm. broad, entire; lower petal of each pair transversely oblong or suborbicular, 6–9 mm. long, 7–10 mm. broad, distally drawn out in a 4–6 × 2–3.5 mm. ligulate appendage.
    Ovary
    Ovary usually finely pubescent.
    Fruits
    Fruit narrowly fusiform, 14–23 mm. long, 2–4 mm. broad, usually but not always pubescent.
    Figures
    Fig. 3/33, p. 6.
    Habitat
    Growing in moist, usually shaded places in upland rain-forest along forest fringes, road and track sides, river margins, by cultivated ground and in marshy places; 450–3000 m.
    Distribution
    K7 T2 T3 T6 T7 not known elsewhere

    Images

    Distribution

    Native to:

    Kenya, Tanzania

    Synonyms

    Other Data

    Impatiens nana Engl. & Warb. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dec 1, 1978 Thulin, M. [3022], Tanzania K000238889
    Jan 1, 1976 Cribb [10234], Tanzania K000238894
    Jan 1, 1975 Faulkner, H. [4816], Tanzania K000238892
    Tanzania 31317.000
    Tanzania 38603.000
    Drummond, R.B. [1388], Tanzania K000238913
    Drummond, R.B. [2882], Tanzania K000238914
    Townsend, C.C. [2382], Kenya K000238884
    Mabberley, D.J. [1414], Tanzania K000238898
    Thulin, M. [2893], Tanzania K000238893
    Bidgood, S. [441], Tanzania K000238890
    G. [94449], Tanzania K000238887
    Luke, W.R.Q. [7682], Tanzania K000238885
    Bruce, E.M. [613], Tanzania K000238902
    Holst, C. [3244], Tanzania K000419492 Unknown type material
    Mbago, F.M. [1733], Tanzania K000238886
    Nyaki [61], Tanzania K000238891
    Jan 1, 1976 Mhoro, B. [609], Tanzania Impatiens trichochila K000238917
    Jan 1, 1976 Cribb [10495], Tanzania Impatiens trichochila K000238899
    Jan 1, 1976 Cribb [10158], Tanzania Impatiens trichochila K000238900
    Jan 1, 1976 Cribb [10515], Tanzania Impatiens trichochila K000238911
    Jan 1, 1976 Cribb [10443], Tanzania Impatiens trichochila K000238915
    Jan 1, 1976 Cribb [10125], Tanzania Impatiens trichochila K000238916
    Jan 1, 1975 Milne-Redhead, E. [7027], Tanzania Impatiens trichochila K000238912
    Jan 1, 1974 Faulkner, H. [4709], Tanzania Impatiens trichochila K000238888
    Jan 1, 1974 Faulkner, H. [4610], Tanzania Impatiens trichochila K000238907
    Jan 1, 1974 Richards, M. [20834], Tanzania Impatiens trichochila K000238906
    Jan 1, 1974 Thulin, M. [834], Tanzania Impatiens trichochila K000238905
    Jan 1, 1974 Richards, H.M. [26430], Tanzania Impatiens trichochila K000238908
    Jan 1, 1974 Richards, H.M. [266176], Tanzania Impatiens trichochila K000238909
    Jan 1, 1973 Batty, M. [225], Tanzania Impatiens trichochila K000238910
    Jan 1, 1973 Carmichael, W. [1634], Tanzania Impatiens trichochila K000238904
    Verdcourt, B. [321], Tanzania Impatiens trichochila 11801.000
    Verdcourt, B. [1035], Kenya Impatiens trichochila 15337.000
    Drummond [3182], Tanzania Impatiens trichochila 31227.000
    Drummond [2671], Tanzania Impatiens trichochila 31283.000
    Verdcourt, B. [321], Tanzania Impatiens trichochila K000238903
    Cribb [10020], Tanzania Impatiens trichochila K000238897
    Tweedie, E.M. [1283], Kenya Impatiens papilionacea 8904.000
    Tweedie, E.M. [1436], Kenya Impatiens papilionacea 8905.000
    Bally, P.R.O. [7976], Kenya Impatiens papilionacea K000238927
    Bally, P.R.O. [7978], Kenya Impatiens papilionacea K000238928
    Tweedie, E.M. [1437], Kenya Impatiens papilionacea 6049.069
    Eggeling, W.J. [2792], Uganda Impatiens papilionacea K000238944
    Irwin [81], Kenya Impatiens papilionacea K000238922
    Faulkner, H. [1128], Tanzania Impatiens trichantha 11800.000

    Bibliography

    First published in H.G.A.Engler (ed.), Pflanzenw. Ost-Afrikas, C: 254 (1895)

    Accepted by

    • Grey-Wilson, C. (1982). Flora of Tropical East Africa, Balsaminaceae: 1-76.

    Literature

    Kew Backbone Distributions

    • Grey-Wilson, C. (1982). Flora of Tropical East Africa, Balsaminaceae: 1-76.

    Flora of Tropical East Africa

    • Grey-Wilson, Impat. Afr.: 138, figs. 81, 82e, pls. 24, 25 (1980).
    • Engl. in Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Theile C: 254 (1895).
    • Engl. in Abh. Preuss. Akad. Wiss.: 68 (1894)

    Sources

    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 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