1. Family: Fabaceae Lindl.
    1. Genus: Sesbania Scop.
      1. Sesbania cinerascens Welw. ex Baker

        This species is accepted, and its native range is Chad to NE. Namibia.

    [FZ]

    Flora Zambesiaca Leguminosae subfamily Papillionoideae by G.P. Lewis

    Stem
    Stems pithy, glabrous, glabrescent or less commonly densely shortly woolly, particularly on the young branches. Stems pithy, glabrous, glabrescent or less commonly densely shortly woolly, particularly on the young branches.
    Leaves
    Leaves 7–36 cm long; petioles 0.3–1.2(4.5) cm long; leaflets in 20–65 pairs, 0.6–3.5 cm × 1.5–6.5 mm, oblong, obtuse or rarely emarginate at the apex, apiculate, glabrous or sparsely spreading pubescent especially on the midvein and margins beneath; stipules up to 7 mm long, marginally or totally woolly, caducous. Leaves 7–36 cm long; petioles 0.3–1.2(4.5) cm long; leaflets in 20–65 pairs, 0.6–3.5 cm × 1.5–6.5 mm, oblong, obtuse or rarely emarginate at the apex, apiculate, glabrous or sparsely spreading pubescent especially on the midvein and margins beneath; stipules up to 7 mm long, marginally or totally woolly, caducous.
    Inflorescences
    Raceme 7–33 cm long, 13–23(26)-flowered; peduncle (1)2–7.5 cm long, densely woolly to sparingly pubescent or glabrescent; pedicels 1–2.2 cm long, densely pubescent, glabrescent or glabrous; bracts caducous; bracteoles 2.5–3 mm long, linear-lanceolate, marginally pubescent to glabrous, caducous. Raceme 7–33 cm long, 13–23(26)-flowered; peduncle (1)2–7.5 cm long, densely woolly to sparingly pubescent or glabrescent; pedicels 1–2.2 cm long, densely pubescent, glabrescent or glabrous; bracts caducous; bracteoles 2.5–3 mm long, linear-lanceolate, marginally pubescent to glabrous, caducous.
    Calyx
    Calyx 6.5–9 × 6–9 mm, oblique, the tube glabrous or sparsely pubescent, the teeth 0.75–1 mm long, acuminate, slightly pubescent marginally. Calyx 6.5–9 × 6–9 mm, oblique, the tube glabrous or sparsely pubescent, the teeth 0.75–1 mm long, acuminate, slightly pubescent marginally.
    Ovary
    Ovary glabrous or rarely pubescent on the lower suture; style glabrous.
    Germination
    Seedlings with first foliage leaf simple, ± equalling the cotyledons in size, second foliage leaf paripinnate.
    Distribution
    Also in Chad, Congo, Angola and Namibia.
    Ecology
    In colonies in swampy areas and seasonally flooded lake shores, river-sides and dambos, in peaty soil or in mud; 900–1400 m.
    Habit
    Short-lived suffrutescent perennial herb 2.5–4 m tall. Short-lived suffrutescent perennial herb 2.5–4 m tall.
    Corolla
    Standard yellow, usually streaked or with dark purple speckles, 2.2–2.7 × 1.7–2.2 cm, broad, rounded, apically emarginate, the appendages with blunt strongly incurved free tips up to 1.5 mm long; wings yellow, 2.2–2.6 cm × 5–8 mm, with an acute basal tooth variable in length or without an obvious tooth, and with lamellate sculpturing in the upper basal one-third to one-half on the outer face; keel yellowish-green, 2.2 cm × 6–11 mm, with a broad subquadrate limb and a basal tooth projecting upwards. Standard yellow, usually streaked or with dark purple speckles, 2.2–2.7 × 1.7–2.2 cm, broad, rounded, apically emarginate, the appendages with blunt strongly incurved free tips up to 1.5 mm long; wings yellow, 2.2–2.6 cm × 5–8 mm, with an acute basal tooth variable in length or without an obvious tooth, and with lamellate sculpturing in the upper basal one-third to one-half on the outer face; keel yellowish-green, 2.2 cm × 6–11 mm, with a broad subquadrate limb and a basal tooth projecting upwards.
    Pistil
    Ovary glabrous or rarely pubescent on the lower suture; style glabrous.
    Fruits
    Pod dark reddish-brown or purplish when mature, area over septa darker than area over seeds when immature, 11.5–33(36.5) cm long (including a stipe of 3–10 mm and beak of 2–3 mm), 2.75–3.5 mm wide, pendulous, linear, very slightly falcate, very occasionally constricted between the seeds along the sutures but usually parallel-sided, thicker above the seed cavities than above the septa, glabrous, (17)30–44(50)-seeded; septa 6–7 mm apart; exocarp of mature pods often fracturing at right-angles to the sutures. Pod dark reddish-brown or purplish when mature, area over septa darker than area over seeds when immature, 11.5–33(36.5) cm long (including a stipe of 3–10 mm and beak of 2–3 mm), 2.75–3.5 mm wide, pendulous, linear, very slightly falcate, very occasionally constricted between the seeds along the sutures but usually parallel-sided, thicker above the seed cavities than above the septa, glabrous, (17)30–44(50)-seeded; septa 6–7 mm apart; exocarp of mature pods often fracturing at right-angles to the sutures.
    Seeds
    Seeds olive-green, brown or black, sometimes mottled, 3.5–5 × 1.5–2 mm, 1.5–2 mm thick, subcylindrical; hilum in a subcentral circular pit surrounded by an obscure rim aril. Seeds olive-green, brown or black, sometimes mottled, 3.5–5 × 1.5–2 mm, 1.5–2 mm thick, subcylindrical; hilum in a subcentral circular pit surrounded by an obscure rim aril.
    Seedling
    Seedlings with first foliage leaf simple, ± equalling the cotyledons in size, second foliage leaf paripinnate.
    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Habit
    Perennial, Not climbing, Herb/Shrub

    Images

    Distribution

    Native to:

    Angola, Botswana, Caprivi Strip, Chad, Namibia, Zambia, Zaïre

    Sesbania cinerascens Welw. ex Baker appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Aug 1, 1988 Long, D.G. [703], Botswana K000317508
    Aug 3, 1984 Smith, P.A. [4384], Botswana K000317509
    Aug 3, 1984 Smith, P.A. [4384], Botswana K000317510
    Jun 13, 1983 Smith, P.A. [4127], Botswana K000317512
    Jun 13, 1983 Smith, P.A. [4122], Botswana K000317515
    Jun 13, 1983 Smith, P.A. [4118], Botswana K000317517
    Jun 13, 1983 Smith, P.A. [4127], Botswana K000317513
    Jun 13, 1983 Smith, P.A. [4122], Botswana K000317516
    Jun 13, 1983 Smith, P.A. [4118], Botswana K000317518
    Richards, H.M. [14698], Botswana K000317502
    Smith, P.A. [238], Botswana K000317520
    Smith, P.A. [1338], Botswana K000317521
    Russell, G.E.G. [2423], Botswana K000317504
    Russell, G.E.G. [2796], Botswana K000317505
    Russell, G.E.G. [2791], Botswana K000317506
    Russell, G.E.G. [2805], Botswana K000317507
    Russell, G.E.G. [2423], Botswana K000317503

    First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 2: 134 (1871)

    Accepted by

    • Mannheimer, C.A. & Curtis, B.A. (eds.) (2009). Le Roux and Müller's field guide to the trees and shrubs of Namibia, rev. ed.: 1-525. Macmillan Education Namibia, Windhoek.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Brummitt, R.K. & al. (2007). Flora Zambesiaca 3(3): 1-258. Royal Botanic Gardens, Kew.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.

    Literature

    Flora Zambesiaca
    • —M. Coates Palgrave, Trees Sthn. Africa: 380 (2002).
    • —K. Coates Palgrave, Trees Sthn. Africa, ed.2: 313 (1988).
    • —Lewis in Kirkia 13: 31 (1988).
    • —Schreiber in Merxmüller, Prodr. Fl. SW Afrika, fam. 60: 109 (1970).
    • —Gillett in Kew Bull. 17: 121, fig.5/1 (1963).
    • emend. E.P. Sousa in C.F.A. 3: 183 (1962).
    • —White, F.F.N.R.: 433 (1962).
    • [in F.T.A. 2: 134 (1871) for most part]
    Kew Backbone Distributions
    • Mannheimer, C.A. & Curtis, B.A. (eds.) (2009). Le Roux and Müller's field guide to the trees and shrubs of Namibia, rev. ed.: 1-525. Macmillan Education Namibia, Windhoek.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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

    Plants and People Africa
    Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
    © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/