1. Family: Fabaceae Lindl.
    1. Genus: Crotalaria L.
      1. Crotalaria prolongata Baker

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

    [FZ]

    Leguminosae, various authors. Flora Zambesiaca 3:7. 2003

    Habit
    Erect annual, 15–75 cm tall, later developing a few curved-ascending branches from near the base; stem densely covered with longish (0.5–1 mm) slightly spreading hairs.
    Leaves
    Leaves mostly 3-foliolate, the uppermost 1-foliolate; leaflets 2–7 × 1–3.5 cm, oblong-oblanceolate to oblong-obovate, rounded to a markedly apiculate apex, finely pubescent on both surfaces, with lateral nerves slightly raised beneath; petiole 1.5–4 cm long, channelled; stipules 2–4 mm long, setaceous.
    Inflorescences
    Racemes terminal, sessile, 3–15 cm long, ± congested, occasionally branched, also with flowers clustered in axils below; bracts 2–4 mm long, setaceous; bracteoles on the pedicel, 0.7–1 mm long.
    Calyx
    Calyx 3.5–4.5 mm long, densely silvery appressed pubescent; upper lobes narrowly attenuate-triangular, ± twice as long as the tube.
    Corolla
    Standard elliptic or ovate, dull yellow, flushed reddish-brown or maroon, extensively pubescent outside; wings brighter yellow, a little shorter than the keel; keel 8–9 mm long, angular, with a long narrow twisted beak incurved a the tip.
    Fruits
    Pod sessile, 6–8 × 4–5 mm, shortly oblong-obovoid, densely appressed pubescent outside, hairy along suture inside, 1–2-seeded.
    Seeds
    Seeds 3–3.5 mm long, very obliquely cordiform, smooth, yellowish-brown.
    [FTEA]

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

    Habit
    Erect annual, up to ± 6 dm. tall, simple or sparingly branched from near the base.
    Stem
    Stem densely covered with fine slightly spreading hairs.
    Leaves
    Leaves mostly 3-foliolate, the uppermost 1-foliolate; leaflets oblong-oblanceolate or obovate-oblong, up to 35–65 mm. long, 14–26 mm. wide, rounded at the apex and prominently apiculate, pubescent on both surfaces; petiole ± 15–40 mm. long.
    Stipules
    Stipules filiform, ± 2–4 mm. long, persistent.
    Inflorescences
    Racemes terminal, sessile, compound, up to 8–15 cm. long, with very many closely arranged or crowded flowers on the primary axis, also in clusters and sometimes on lateral axes up to 5 cm. long, also clustered in the axils below; bracts filiform, 2–4 mm. long; bracteoles inserted on the pedicel, filiform, ± 1 mm. long.
    Calyx
    Calyx 3·5–4 mm. long, with the tube protracted on the lower side, densely silvery appressed pubescent; upper lobes narrowly attenuate-triangular, ± twice as long as the tube.
    Corolla
    Standard elliptic or ovate, dull yellow, flushed reddish-brown or maroon, densely pubescent outside; wings a little shorter than the keel; keel bent at right-angles in the lower third, with a long narrow twisted beak, 8–9 mm. long.
    Fruits
    Pod sessile, subglobose-ellipsoid, 6–8 mm. long, 4–5 mm. across, densely appressed puberulous outside, pubescent along the suture inside, 1–2-seeded.
    Seeds
    Seeds oblique-cordiform, ± 3–5 mm. long, smooth, yellowish-brown.
    Habitat
    Brachystegia woodland, common along roadsides; 900 m.
    Distribution
    T4
    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Ecology
    Africa: Zambezian woodland, Zambezian grassland
    Habit
    Annual, Not climbing, Herb

    Images

    Distribution

    Native to:

    Angola, Malawi, Tanzania, Zambia, Zaïre

    Crotalaria prolongata Baker appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Welwitsch [1955], Angola K000227396 Unknown type material

    First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 2: 25 (1871)

    Accepted by

    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Pope, G.V., Polhill, R.N. & Martins, E.S. (eds.) (2003). Flora Zambesiaca 3(7): 1-274. Royal Botanic Gardens, Kew.
    • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Pope, G.V., Polhill, R.N. & Martins, E.S. (eds.) (2003). Flora Zambesiaca 3(7): 1-274. Royal Botanic Gardens, Kew.
    Flora of Tropical East Africa
    • Torre in Consp. Fl. Angol. 3: 40 (1962).
    • Wilczek in Flore du Congo Belge et du Ruanda-Urundi, 4:132 (1953).
    • Bak. f. in Journal of the Linnean Society of London, Botany 42: 284 (1914).
    • Bak. in Flora of Tropical Africa 2: 25 (1871).
    International Legume Database and Information Service
    • Polhill, R. M. (1982). A. A. Balkema, Rotterdam 389pp Crotalaria in Africa & Madagasca

    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/

    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