1. Family: Fabaceae Lindl.
    1. Genus: Crotalaria L.
      1. Crotalaria rogersii Baker f.

        This species is accepted, and its native range is Tanzania to S. Tropical Africa.

    [FZ]

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

    Habit
    Erect or rarely decumbent perennial herb, with 1–several simple to much branched stems from a woody rootstock (but also flowering in first year of growth), up to 2.7 m tall; branches densely covered with short appressed or crisped hairs.
    Leaves
    Leaves 3-foliolate; leaflets mostly 4–8.5 × 1.5–5.5 cm, oblanceolate-elliptic to broadly elliptic or obovate-elliptic, appressed puberulous beneath, often rather glaucous; petiole shorter to longer than the leaflets; stipules 1–4 mm long, filiform to linear-caudate, caducous, or lacking.
    Flowers
    Flowers similar to C.pallida, but the standard and more particularly the keel often flushed purple; beak of the keel slightly more incurved.
    Fruits
    Pod shortly stipitate, 2.8–3.5 × 0.6–0.9 cm, subcylindrical, appressed puberulous, often glabrescent, 18–28-seeded.
    Seeds
    Seeds 3.5–4 mm long, oblique-cordiform, minutely papillose, greenish-brown or mottled.
    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Ecology
    Africa: Zambezian woodland, Zambezian bushland and thicket, Zambezian wooded grassland, Zambezian grassland
    Habit
    Perennial, Not climbing, Herb
    [FTEA]

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

    Habit
    Erect or rarely decumbent perennial, with 1-several simple or much-branched stems from a woody rootstock, up to 2–27 dm. tall, but also flowering in the first year of growth.
    Stem
    Stems finely ribbed, densely covered with short appressed or crisped and slightly spreading hairs.
    Leaves
    Leaves 3-foliolate; leaflets oblanceolate-elliptic to broadly elliptic or obovate-elliptic, up to 40–85 mm. long, 13–55 mm. wide, glabrous above, thinly appressed puberulous beneath, often glaucous; petiole 20–100 mm. long.
    Stipules
    Stipules filiform or linear-caudate, 1–4 mm. long, caducous, or absent.
    Inflorescences
    Racemes shortly pedunculate, up to 15–40 cm. long, with many flowers, crowded at least towards the top; bracts filiform, 3–7 mm. long, early caducous; bracteoles inserted at the base of the calyx, filiform or linear-caudate, up to 1–2 mm. long.
    Calyx
    Calyx becoming basally truncate and deflexed against the pedicel, 5–7 mm. long, rather densely appressed pubescent; lobes narrow, acuminate, longer than the tube.
    Corolla
    Standard elliptic, yellow, veined reddish, glabrous outside; wings little more than half as long as the keel; keel rather shallowly rounded, with a narrow rather projecting untwisted beak, (9–)11–14 mm. long, greenish-yellow, usually suffused with purple.
    Fruits
    Pod shortly stipitate, subcylindrical, slightly expanded towards the apex, 28–35 mm. long, 8–9 mm. across, appressed puberulous, often glabrescent, ± 18–26-seeded.
    Seeds
    Seeds oblique-cordiform, ± 4 mm. long, minutely papillose, greenish-brown.
    Habitat
    Characteristic of Brachystegia woodland, but also extending into deciduous bushland, grassland, lake shores and persisting in pastures and on cultivated land; 900–2550 m.
    Distribution
    T1 T2 T4 T5 T7

    Images

    Distribution

    Native to:

    Malawi, Tanzania, Zambia, Zaïre, Zimbabwe

    Crotalaria rogersii Baker f. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Brenan, J.P.M. [7716], Zambia 749.000
    Bidgood, S. [5135], Tanzania K000190363
    Rogers, F.A. [8330], Zambia K000412592 Unknown type material
    Rogers, F.A. [10241], Congo, DRC K000412790

    First published in J. Linn. Soc., Bot. 42: 347 (1914)

    Accepted by

    • 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
    • Wilczek in Flore du Congo Belge et du Ruanda-Urundi, 4: 167 (1953).
    • Verdoorn in Bothalia 2: 399 (1928).
    • Bak. f. in Journal of the Linnean Society of London, Botany 42: 347 (1914).
    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