1. Family: Fabaceae Lindl.
    1. Genus: Rhynchosia Lour.
      1. Rhynchosia holstii Harms

        This species is accepted, and is native to Africa..

    [FTEA]

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

    Habit
    Perennial climbing or trailing herb with several stems ± 1 m. long from a woody rootstock.
    Stem
    Stems often robust, ridged, pubescent particularly on the ridges.
    Leaves
    Leaflets 3, rhomboid, the laterals oblique, 1–5·5 cm. long, 0·7–4·5 cm. wide, obtuse or subacute at the apex, rounded at the base, sparsely to densely grey pubescent on both sides, gland-dotted beneath, slightly rugose above; petiole 0·6–5·5 cm. long; rhachis 1·5–8 mm. long; petiolules 0·5–2 mm. long; stipules oblong-elliptic, often reflexed, 4–7 mm. long, 2–3·5 mm. wide, veined, hairy.
    Inflorescences
    Inflorescences axillary; rhachis 5–10 cm. long; peduncle 2·5–5 cm. long; pedicels 2 mm. long; bracts often ± persistent, lanceolate, 3 mm. long, 1–1·5 mm. wide.
    Calyx
    Calyx pubescent and glandular; tube 2·5–3 mm. long; lobes lanceolate, 4–10 mm. long, the lowest longest and widest, the upper pair joined together for ± half to two-thirds of their length.
    Corolla
    Standard yellow with pale reddish-purple veining, broadly obovate, 0·9–1·8 cm. long, 0·7–1·3 cm. wide, pubescent and glandular; wings bright yellow; keel greenish.
    Fruits
    Pods blackish, oblong, 1–1·5 cm. long, 4–5 mm. wide, densely pubescent and glandular.
    Seeds
    Seeds black or reddish-brown mottled with black, oblong-reniform, longest dimension 2·5–3·2 mm., shorter dimension 2–2·5 mm., 1·2 mm. thick.
    Habitat
    Grassland, grassland with scattered trees, recently cleared forest areas, also swamps and cultivated ground; said to be a pioneer on recently burnt land; (? 500–) 900–2190 m.
    Distribution
    K4 K6 T3 T5 T6 U4
    [FZ]

    Leguminosae, B. Mackinder, R. Pasquet, R. Polhill and B. Verdcourt. Flora Zambesiaca 3:5. 2001

    Habit
    Perennial climbing or trailing herb with several stems 0.3–1 m long from a woody rootstock.
    Stem
    Stems often robust, ridged, pubescent particularly on the ridges.
    Leaflets
    Leaflets 3, 1–5.5 × 0.7–4.5 cm, rhombic, the laterals oblique, obtuse or subacute at the apex, rounded at the base, sparsely to densely grey pubescent on both sides, gland-dotted beneath, slightly rugose above; petiole 0.6–5.5 cm long; rhachis 1.5–8 mm long; petiolules 0.5–2 mm long; stipules 4–7 × 2–3.5 mm, oblong-elliptic, often reflexed, veined, hairy.
    Inflorescences
    Inflorescences axillary; rhachis 5–10 cm long; peduncle 2.5–5 cm long; pedicels 2 mm long; bracts often ± persistent, 3 × 1–1.5 mm, lanceolate.
    Calyx
    Calyx pubescent and glandular; tube 2.5–3 mm long; lobes 4–10 mm long, lanceolate, the lowest longest and widest, the upper pair joined together for ± half to two-thirds of their length.
    Corolla
    Standard yellow with pale reddish-purple veining, 9–18 × 7–13 mm, broadly obovate, pubescent and glandular; wings bright yellow; keel greenish.
    Fruits
    Pods blackish, 10–15 × 4–5 mm, oblong, densely pubescent and glandular.
    Seeds
    Seeds black or reddish-brown mottled with black, 2.5–3.2 × 2–2.5 × 1.2 mm, oblong-reniform.
    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Ecology
    Africa: Somalia-Masai grasslands, Zambezian grassland, Somalia-Masai wooded grasslands., Lake Victoria regional mosaic; wooded grassland
    Habit
    Perennial, Climbing/Not climbing, Herb

    Distribution

    Native to:

    Kenya, Malawi, Mozambique, Tanzania, Uganda, Zaïre, Zimbabwe

    Rhynchosia holstii Harms appears in other Kew resources:

    First published in Bot. Jahrb. Syst. 26: 306 (1899)

    Accepted by

    • Mackinder, B., Pasquet, R., Polhill, R. & Verdcourt, B. (2001). Flora Zambesiaca 3(5): 1-261. Royal Botanic Gardens, Kew.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Mackinder, B., Pasquet, R., Polhill, R. & Verdcourt, B. (2001). Flora Zambesiaca 3(5): 1-261. Royal Botanic Gardens, Kew.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.
    Flora of Tropical East Africa
    • Verdc. in Kew Bulletin 25: 106, fig. 4 (1971).
    • Bak. f., Leguminosae of Tropical Africa: 475 (1929).
    • Harms in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 26: 306 (1899).
    International Legume Database and Information Service
    • Gillett, J. B. et al. (1971). Papilionoideae. In: Fl. Trop. E. Africa, Milne-Redhead & Polhill

    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

    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