1. Family: Fabaceae Lindl.
    1. Genus: Sesbania Scop.
      1. Sesbania tetraptera Hochst. ex Baker

        This species is accepted, and its native range is Niger to Ethiopia and S. Africa.

    [FZ]

    Flora Zambesiaca Leguminosae subfamily Papillionoideae by G.P. Lewis

    Habit
    Erect annual or biennial herb 1–4 m tall, sometimes with wide regular branching. Erect annual or biennial herb 1–4 m tall, sometimes with wide regular branching.
    Stem
    Stems greenish or tinged purplish-blue, sparsely pilose when young, glabrous later, sometimes with a few to many scattered prickles. Stems greenish or tinged purplish-blue, sparsely pilose when young, glabrous later, sometimes with a few to many scattered prickles.
    Leaves
    Leaves (5.5)7–38 cm long, the rachis sparsely pilose on the upper surface, sometimes sparsely aculeate below; petioles (0.2)0.3–1.8(3.5) cm long; leaflets in (9)16–42 pairs, 0.8–4.3 cm × 2–10.5 mm, often purplish beneath, oblong, apiculate, occasionally obscurely pilose on margins and midvein beneath, otherwise glabrous; stipules 5–10 mm long, narrowly lanceolate, pilose, usually spreading and persistent, often with a curled apex. Leaves (5.5)7–38 cm long, the rachis sparsely pilose on the upper surface, sometimes sparsely aculeate below; petioles (0.2)0.3–1.8(3.5) cm long; leaflets in (9)16–42 pairs, 0.8–4.3 cm × 2–10.5 mm, often purplish beneath, oblong, apiculate, occasionally obscurely pilose on margins and midvein beneath, otherwise glabrous; stipules 5–10 mm long, narrowly lanceolate, pilose, usually spreading and persistent, often with a curled apex.
    Inflorescences
    Raceme 3.4–16.2 cm long, 2–13-flowered; peduncle 1.8–7 cm long, beset, often densely so, with flattened, sometimes fused prickles especially at the base, the prickles occasionally tipped with hairs; pedicels 0.4–2.1 cm long, glabrous; bracts 3–5.5 mm long, linear to narrowly lanceolate, spreading, caducous or persisting until after the corolla has fallen off; bracteoles 2–4 mm long, linear-lanceolate, caducous. Raceme 3.4–16.2 cm long, 2–13-flowered; peduncle 1.8–7 cm long, beset, often densely so, with flattened, sometimes fused prickles especially at the base, the prickles occasionally tipped with hairs; pedicels 0.4–2.1 cm long, glabrous; bracts 3–5.5 mm long, linear to narrowly lanceolate, spreading, caducous or persisting until after the corolla has fallen off; bracteoles 2–4 mm long, linear-lanceolate, caducous.
    Calyx
    Calyx 4–7 × 4.5–8 mm; tube glabrous; teeth 0.5–1.5 mm long, acuminate, marginally hairy. Calyx 4–7 × 4.5–8 mm; tube glabrous; teeth 0.5–1.5 mm long, acuminate, marginally hairy.
    Corolla
    Standard pale yellow with dark purple speckling on the outer face, 0.9–2 × 0.8–1.8 cm, broad, rounded, apically emarginate, the blade often wider than long, sometimes prominently cordate basally, the appendages gently rounded and without free tips; wings yellow, 1–2 cm × 3–6 mm, with an upper basal very slightly downward-pointing tooth and with lamellate sculpturing in the upper basal section on outer face; keel pale yellow to greenish-yellow, 0.7–1.6 cm × 5–9 mm; basal tooth usually at an angle of 10–30° with the claw but occasionally at 45° (e.g. Richards 14469). Standard pale yellow with dark purple speckling on the outer face, 0.9–2 × 0.8–1.8 cm, broad, rounded, apically emarginate, the blade often wider than long, sometimes prominently cordate basally, the appendages gently rounded and without free tips; wings yellow, 1–2 cm × 3–6 mm, with an upper basal very slightly downward-pointing tooth and with lamellate sculpturing in the upper basal section on outer face; keel pale yellow to greenish-yellow, 0.7–1.6 cm × 5–9 mm; basal tooth usually at an angle of 10–30° with the claw but occasionally at 45° (e.g. Richards 14469).
    Ovary
    Ovary winged, 15–32-ovulate, glabrous; style pubescent except at the base.
    Fruits
    Pod (8.3)12–23.3 × (0.9)1–1.4 cm, linear or slightly curved, shortly beaked, stipitate, 4-winged, (9)19–28-seeded, glabrous; wings darker than the central window-like areas above the seeds except in very old fruit; septa 6–8 mm apart. Pod (8.3)12–23.3 × (0.9)1–1.4 cm, linear or slightly curved, shortly beaked, stipitate, 4-winged, (9)19–28-seeded, glabrous; wings darker than the central window-like areas above the seeds except in very old fruit; septa 6–8 mm apart.
    Pistil
    Ovary winged, 15–32-ovulate, glabrous; style pubescent except at the base.
    Seeds
    Seeds ochre, olive-green sometimes over-coloured bluish-black, brown or reddish-brown, 4–5.5 × 2–4 mm, 1.5–2.5 mm thick, ellipsoid to brick-shaped; hilum in small subcentral circular pit surrounded by a rim aril. Seeds ochre, olive-green sometimes over-coloured bluish-black, brown or reddish-brown, 4–5.5 × 2–4 mm, 1.5–2.5 mm thick, ellipsoid to brick-shaped; hilum in small subcentral circular pit surrounded by a rim aril.
    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Ecology
    Africa: Zambezian freshwater swamp and aquatic vegetation, Sudanian freshwater swamp and aquatic vegetation
    Habit
    Annual, Not climbing, Herb
    [FTEA]

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

    Habit
    Erect annual herb, 1–2 m. tall; stems sparsely pilose when young, glabrous later, sometimes aculeate.
    Leaves
    Stipules narrowly lanceolate, up to 9 mm. long, rather persistent, pilose, spreading; leaf-rhachis sometimes sparsely aculeate on lower side, sparsely pilose on upper surface, 10–22 cm. long; leaflets in 20–30 pairs, up to 24 mm. long and 6 mm. wide, glabrous, pale green above, purplish beneath.
    Inflorescences
    Racemes 2–12-flowered, almost glabrous, the rhachis up to 11 cm. long, including a peduncle of up to 3.5 cm. which is always covered with flat hooked prickles at the base; bracts narrowly lanceolate, spreading, up to 4 mm. long, usually persisting till after the corolla has fallen off; pedicels up to 15 mm. long.
    Receptacle
    Receptacle 1.5 mm., calyx-tube 3 mm., teeth acuminate, 1.5 mm. long.
    Corolla
    Blade of standard 7–10 mm. long, 9–13 mm. wide; appendages gently rounded, up to 0.5 mm. wide; claw 4 mm. long; blade of wing 8–10 mm. long, 3–4 mm. wide, toothed but hardly hooked at the base; claw 4 mm. long; blade of keel 5–6 mm. long, 3 mm. wide at the base, 7 mm. near the apex; basal tooth at an angle of 20°–30° with the 5–6 mm. long claw.
    Stamens
    Filament-sheath 7–9 mm., free parts 3–4 mm., anthers 0.5 mm. long.
    Pistil
    Ovary slightly winged, glabrous, 15–25-ovulate; style pubescent except at the base, 3–4 mm. long.
    Fruits
    Pod slightly curved, 12–16 cm. long, including a beak of 6–7 mm. and a stipe of 8–9 mm., the sutures expanded into 4 wings each 4–6 mm. wide (fig. 49/14, p. 332), 15–20-seeded; pod, apart from wings, 5 mm. wide, 3 mm. thick; septa 6–8 mm. apart.
    Seeds
    Seeds yellow, not mottled, rounded-oblong, 4.5 × 3 × 2 mm.; hilum 0.5 mm. long.
    Habitat
    Temporarily flooded grassland; 800–1000 m.; rainfall 950–1050 mm.
    Distribution
    T4

    Distribution

    Native to:

    Botswana, Chad, Ethiopia, Malawi, Mozambique, Niger, Northern Provinces, Sudan, Tanzania, Zimbabwe

    Sesbania tetraptera Hochst. ex Baker appears in other Kew resources:

    First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 2: 136 (1871)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • 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.
    • Peyre de Fabregues, B. & Lebrun, J.-P. (1976). Catalogue des Plantes Vascularies du Niger: 1-433. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.

    Literature

    Flora Zambesiaca
    • —Lewis in Kirkia 13: 48 (1988).
    • —Gillett in F.T.E.A., Legum., Pap.: 351 (1971).
    • —Gillett in Kew Bull. 17: 149, fig. 3/14 (1963)
    • —Baker f., Legum. Trop. Africa: 263 (1929).
    • —Phillips & Hutchinson in Bothalia 1: 53 (1921).
    • in F.T.A. 2: 136 (1871).
    Kew Backbone Distributions
    • 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.
    • Peyre de Fabregues, B. & Lebrun, J.-P. (1976). Catalogue des Plantes Vascularies du Niger: 1-433. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
    Flora of Tropical East Africa
    • Gillett in Kew Bulletin 17:149 (1963).
    • F. W. Andr., The Flowering Plants of the Anglo-Egyptian Sudan 2: 232 (1952).
    • Bak. f., Leguminosae of Tropical Africa: 263 (1929).
    • Phil. & Hutch. in Bothalia 1: 53 (1921).
    • Bak. in Flora of Tropical Africa 2: 136 (1871).
    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