1. Family: Fabaceae Lindl.
    1. Genus: Rhynchosia Lour.
      1. Rhynchosia usambarensis Taub.

        This species is accepted, and its native range is Eritrea to Rwanda and Tanzania.

    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Ecology
    Africa: Lake Victoria regional mosaic; forest., Somalia-Masai bushland and thicket, Somalia-Masai grasslands
    Habit
    Perennial, Climbing, Herb
    [FTEA]

    Leguminosae, J. B. Gillett, R. M. Polhill & B. Verdcourt. Flora of Tropical East Africa. 1971

    Habit
    Perennial climbing herb 0·3–1·8 m. long from a woody rootstock.
    Stem
    Stems with spreading ferruginous or yellow hairs and shorter adpressed white pubescence.
    Leaves
    Leaflets 3, nearly always variegated above with paler green along the midrib, typically elliptic or elliptic-ovate, less often ovate-rounded or rhomboid, the laterals slightly oblique, 0·8–7·5 cm. long, 0·9–4 cm. wide, acute or less often obtuse or rounded at the apex, rounded at the base, pubescent on both surfaces, minutely gland-dotted beneath; venation slightly raised and reticulate above; petiole 0·5–5 cm. long; rhachis 0·1–1·1 cm. long; petiolules 1–2·5 mm. long; stipules lanceolate to ovate, 0·4–1·1 cm. long, 1–3 mm. wide, veined, pubescent.
    Inflorescences
    Inflorescences with a rhachis 1·4–11 cm. long; peduncle 2–8 cm. long; pedicels 1·5–2 mm. long; bracts ovate-lanceolate, ± 2–6 mm. long, 1–2 mm. wide, often deciduous.
    Calyx
    Calyx pubescent and with some tubercular-based hairs; tube 1·5–3 mm. long; lobes linear-triangular, 2–6 mm. long, the lowest the longest, the upper pair joined for ± half their length.
    Corolla
    Standard yellow inside, veined purplish-crimson or reddish-brown or rose flushed outside, obovate, 0·9–1·1 cm. long, 7–8 mm. wide, finely pubescent or covered with spaced tubercular-based hairs; wings and keel yellow or greenish.
    Fruits
    Pod oblong, 1·8–2·4(–2·8) cm. long, 5·5–7 mm. wide, acute at the apex, narrowed to the base, covered with yellow tubercular-based hairs, short white hairs and glands or sometimes only puberulous.
    Seeds
    Seeds dark reddish-brown, oblong, longest dimension 3·5 mm., shorter dimensions 1·5 mm.

    Images

    Distribution

    Native to:

    Eritrea, Ethiopia, Kenya, Rwanda, Somalia, Tanzania, Uganda

    Rhynchosia usambarensis Taub. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Feb 1, 1968 Bogdan, A. [964], Kenya K000058940
    Feb 1, 1968 Bogdan, A. [1861], Kenya K000058941
    Feb 1, 1968 Bogdan, A. [1918], Kenya K000058942
    Feb 1, 1968 Brodhurst-Hill [318], Kenya K000058944
    Jan 1, 1968 Verdcourt, B. [3141], Kenya K000058943
    Jan 1, 1968 Brodhurst-Hill [194], Kenya K000058939
    Gillett, J.B. [16603], Kenya K000058950

    First published in H.G.A.Engler, Pflanzenw. Ost-Afrikas, C: 222 (1895)

    Accepted by

    • Thulin, M. (ed.) (1993). Flora of Somalia 1: 1-493. The Royal Botanic Gardens, Kew.
    • Hedberg, I. & Edwards, S. (eds.) (1989 publ. 1990). Flora of Ethiopia and Eritrea 3: 1-659. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.
    • Troupin, G. (ed.) (1983). Flora du Rwanda 2: 1-603. Musee Royal de l'Afrique Centrale.

    Literature

    Kew Backbone Distributions
    • Thulin, M. (ed.) (1993). Flora of Somalia 1: 1-493. The Royal Botanic Gardens, Kew.
    • Hedberg, I. & Edwards, S. (eds.) (1989 publ. 1990). Flora of Ethiopia and Eritrea 3: 1-659. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.
    • Troupin, G. (ed.) (1983). Flora du Rwanda 2: 1-603. Musee Royal de l'Afrique Centrale.
    Flora of Tropical East Africa
    • Hauman in Flore du Congo Belge et du Ruanda-Urundi, 6: 163 (1954).
    • Bak. f., Leguminosae of Tropical Africa: 482 (1929).
    • Taub. in Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Theile C: 222 (1895).
    International Legume Database and Information Service
    • Gillett, J. B. et al. (1971). Papilionoideae. In: Fl. Trop. E. Africa, Milne-Redhead & Polhill

    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/

    International Legume Database and Information Service
    International Legume Database and Information Service (ILDIS) V10.39 Nov 2011
    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