1. Family: Fabaceae Lindl.
    1. Genus: Sesbania Scop.
      1. Sesbania greenwayi J.B.Gillett

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

    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Ecology
    Africa: Zanzibar-Inhambane regional transition zone; f-w swamp & aquatic vegetation, Zambezian freshwater swamp and aquatic vegetation, Somalia-Masai freshwater swamp and aquatic vegetation
    Habit
    Annual, Not climbing, Herb
    [FZ]

    Flora Zambesiaca Leguminosae subfamily Papillionoideae by G.P. Lewis

    Distribution
    Also from Somalia and Tanzania.
    Ecology
    Seasonally flooded areas, swamps, dambos, river banks, roadside ditches and savanna margins; on heavy clay and alluvial soils; 0–1000 m.
    Habit
    Erect slightly woody annual herb, 1–5.5 m tall. Erect slightly woody annual herb, 1–5.5 m tall.
    Stem
    Stems glabrous or sparsely pilose when young, rarely with a few obscure prickles. Stems glabrous or sparsely pilose when young, rarely with a few obscure prickles.
    Leaves
    Leaves 1.2–10 cm long (37.5 cm long on lower parts of plant), the rachis sometimes with a few prickles; petioles 0.15–0.9 cm long (6.5 cm on larger leaves); leaflets in (1)3–32 subopposite pairs, 0.5–1.4(4) cm × 2–5(6.5) mm, oblong to narrowly obovate, rounded to emarginate at the apex, apiculate, entire, glabrous although slightly pubescent when young; stipules 2–7 mm long, lanceolate, long acuminate, erect or spreading, sparsely pilose, usually caducous. Leaves 1.2–10 cm long (37.5 cm long on lower parts of plant), the rachis sometimes with a few prickles; petioles 0.15–0.9 cm long (6.5 cm on larger leaves); leaflets in (1)3–32 subopposite pairs, 0.5–1.4(4) cm × 2–5(6.5) mm, oblong to narrowly obovate, rounded to emarginate at the apex, apiculate, entire, glabrous although slightly pubescent when young; stipules 2–7 mm long, lanceolate, long acuminate, erect or spreading, sparsely pilose, usually caducous.
    Inflorescences
    Raceme (1)2–12 cm long, (1)2–13-flowered; peduncle 0.8–2.8(4) cm long, glabrous or sparsely pilose especially near the base, sometimes with small prickles intermixed with the hairs; pedicels (0.2)0.6–1 cm long, glabrous or with an occasional hair, sometimes with very small prickles; bracts and bracteoles linear-lanceolate, sparsely pilose on the margins, caducous, the bracts 3–4 mm long, the bracteoles 2–3 mm long. Raceme (1)2–12 cm long, (1)2–13-flowered; peduncle 0.8–2.8(4) cm long, glabrous or sparsely pilose especially near the base, sometimes with small prickles intermixed with the hairs; pedicels (0.2)0.6–1 cm long, glabrous or with an occasional hair, sometimes with very small prickles; bracts and bracteoles linear-lanceolate, sparsely pilose on the margins, caducous, the bracts 3–4 mm long, the bracteoles 2–3 mm long.
    Calyx
    Calyx 4–7 × 4–7 mm, the tube glabrous; teeth 0.7–1.3 mm long, slightly acuminate, shortly woolly on the margins. Calyx 4–7 × 4–7 mm, the tube glabrous; teeth 0.7–1.3 mm long, slightly acuminate, shortly woolly on the margins.
    Corolla
    Standard yellow, speckled with purplish-black on the outer face, 1.4–1.65 × 1.1–1.4 cm, broad, rounded, apically emarginate, the appendages 1–1.5 mm long abruptly rounded and sometimes emarginate at the top; wings 1.4–1.75 cm × 3–5.5 mm, usually with a small, slightly hooked upper basal tooth and with lamellate sculpturing in the upper basal half on outer face; keel 1.3–1.6 cm × 6–7.5 mm, with basal tooth acute, the apex 2 mm long, forming an angle of 40°–70° with the claw. Standard yellow, speckled with purplish-black on the outer face, 1.4–1.65 × 1.1–1.4 cm, broad, rounded, apically emarginate, the appendages 1–1.5 mm long abruptly rounded and sometimes emarginate at the top; wings 1.4–1.75 cm × 3–5.5 mm, usually with a small, slightly hooked upper basal tooth and with lamellate sculpturing in the upper basal half on outer face; keel 1.3–1.6 cm × 6–7.5 mm, with basal tooth acute, the apex 2 mm long, forming an angle of 40°–70° with the claw.
    Ovary
    Ovary glabrous, often slightly thickened towards the base of the style, the style pubescent except at the base. Ovary glabrous, often slightly thickened towards the base of the style, the style pubescent except at the base.
    Fruits
    Pod straw-coloured, mottled dull reddish-brown when mature, (4)7.5–29.5 cm × 2.5–4.5 mm, slightly falcate, torulose, stipitate, shortly beaked, glabrous, (2)5–40-seeded; septa 6–8 mm apart. Pod straw-coloured, mottled dull reddish-brown when mature, (4)7.5–29.5 cm × 2.5–4.5 mm, slightly falcate, torulose, stipitate, shortly beaked, glabrous, (2)5–40-seeded; septa 6–8 mm apart.
    Seeds
    Seeds pale brown to olive-greenish-brown to almost black, not mottled, 4–4.5 × 2–2.5 mm, 1–2 mm thick, elliptical; hilum in a small, subcentral circular pit. Seeds pale brown to olive-greenish-brown to almost black, not mottled, 4–4.5 × 2–2.5 mm, 1–2 mm thick, elliptical; hilum in a small, subcentral circular pit.
    [FTEA]

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

    Habit
    Erect slightly woody annual, 1–5 m. tall; stems glabrous or sparsely pilose when young, rarely with a few small prickles.
    Leaves
    Stipules lanceolate, erect or rather spreading, sparsely pilose, usually caducous; leaf-rhachis in young plants up to 10 cm., in older plants rarely over 4 cm. long, glabrous or, when young, sparsely pilose near the base, sometimes with a few small prickles; leaflets in 3–28 pairs, up to 12 mm. long and 4 mm. wide, glabrous.
    Inflorescences
    Racemes 2–13-flowered, glabrous or sparsely pilose when young; rhachis up to 9 cm. long including a peduncle of up to 4 cm.; pedicels up to 16 mm. long.
    Calyx
    Calyx glabrous except for the slightly woolly margin; receptacle 1.5 mm., tube 3–4.5 mm., teeth slightly acuminate, 0.7–1.3 mm. long.
    Corolla
    Blade of standard 11–12 mm. long, 12–14 mm. wide; appendages 1–1.5 mm. wide, abruptly rounded and sometimes emarginate at the top (fig. 49/11b, p. 332); claw 4–5 mm. long; blade of wing 11–12 mm. long, 4 mm. wide, hooked at the base; claw 4 mm.; blade of keel 5–7 mm. long, 3.5 mm. wide at the base, 5.5–7 mm. towards the apex; basal tooth acute, the apex 2 mm. long, forming an angle of 40°–70° with the 8–9 mm. long claw (fig. 49/11a).
    Stamens
    Filament-sheath 12–13 mm., free parts 3–4 mm., anthers 0.9 mm. long.
    Pistil
    Ovary glabrous, 25–40-ovulate, thickened towards the tip; style pubescent except for the base, 3.5–5.5 mm. long.
    Fruits
    Pod dull reddish, torulose, slightly curved, 8–24 cm. long, including a beak and stipe each of ± 7 mm., ± 3.5 mm. wide across the seeds, 2.5 mm. at the septa, up to 1.5 mm. thick in the centre, 1 mm. at the sutures; septa 6–7 mm. apart.
    Seeds
    Seeds chestnut-brown, not mottled, elliptical, 4.5 × 2.3 × 1.2 mm.; hilum 0.5 mm. long.
    Habitat
    Seasonally flooded land and abandoned rice fields; 0–600 m.; rainfall 1000–1200 mm.
    Distribution
    T6 T8

    Images

    Distribution

    Native to:

    Mozambique, Somalia, Tanzania, Zambia, Zimbabwe

    Sesbania greenwayi J.B.Gillett appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Aug 2, 2010 Lotter, M.C. [1620], Mozambique K000823738
    Jun 23, 1960 Greenway, P.J. [5188], Tanzania K000393384 holotype
    Jun 23, 1960 Greenway, P.J. [5188], Tanzania K000393385 holotype

    First published in Kew Bull. 17: 138 (1963)

    Accepted by

    • Brummitt, R.K. & al. (2007). Flora Zambesiaca 3(3): 1-258. Royal Botanic Gardens, Kew.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.

    Literature

    Flora Zambesiaca
    • —Lewis in Kirkia 13: 43 (1988).
    • J.B. Gillett in F.T.E.A., Legum., Pap.: 347, fig.49/11 (1971).
    • in Kew Bull. 17: 138, fig.3/11 (1963)
    Kew Backbone Distributions
    • Brummitt, R.K. & al. (2007). Flora Zambesiaca 3(3): 1-258. 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
    • Gillett in Kew Bulletin 17: 138 (1963).
    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

    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