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This species is accepted, and its native range is Tropical Africa, Comoros, Madagascar.
Dioscorea sansibarensis

[FWTA]

Dioscoreaceae, J. Miège. Flora of West Tropical Africa 3:1. 1968

Morphology General Habit
Glabrous non-spiny climber 15-20 ft. high
Vegetative Multiplication Bulbils
Bearing purple or brownish toxic bulbils
Vegetative Multiplication Tubers
The perennial tubers are also poisonous
Morphology Reproductive morphology Flowers
Female flowers white, veined purple.
sex Female
Female flowers white, veined purple.

[FTEA]

Dioscoreaceae, E. Milne-Redhead. Flora of Tropical East Africa. 1975

Morphology General Habit
Tuber perennial, becoming very large in age, depressed globose, flattened below, hollowed towards the centre, developing roundish lobes in age, up to 40 cm. in diameter and 15 cm. deep, the upper surface near ground-level.
Morphology General Indumentum
Plant glabrous.
Morphology Stem
Twining stems 25 m. or more long.
Morphology Leaves
Leaves normally opposite; petiole 8–12(–26) cm. long; blade heart-shaped, up to 20(–46) cm. long (including acumen) and 23(–58) cm. broad, with a thickened acute acumen 5(–20) cm. long; towards base of stem leaves replaced by fleshy auricles; leaf-blades of young plants variously shaped and lobed (see fig. 3/1–3).
Vegetative Multiplication Tubers
Aerial tubers irregularly roundish, up to 6 cm. diameter, deep purplish.
Morphology Reproductive morphology Inflorescences
Inflorescences pendulous, spicate. Male 1 or 2 per leaf-axil or forming a terminal leafless panicle; spikes up to 50 cm. long, with 1 or 2 downwardly directed flowers at each node, not opening wide, ± 5 mm. long. Stamens 6. Female inflorescences 1–3 per leaf-axil, up to 48 cm. long; flowers solitary at a node, directed downwards; perianth not opening wide, ± 3 mm. in diameter. Ovary ± 6 mm. long.
sex Male
Male 1 or 2 per leaf-axil or forming a terminal leafless panicle; spikes up to 50 cm. long, with 1 or 2 downwardly directed flowers at each node, not opening wide, ± 5 mm. long. Stamens 6.
sex Female
Female inflorescences 1–3 per leaf-axil, up to 48 cm. long; flowers solitary at a node, directed downwards; perianth not opening wide, ± 3 mm. in diameter. Ovary ± 6 mm. long.
Morphology Reproductive morphology Fruits
Capsule as in fig. 1/2, p. 4, ± 5 cm. long and 2.5 cm. in diameter, directed upwards.
Morphology Reproductive morphology Seeds
Seeds (fig. 1/2a) winged at both ends, ± 3.5 cm. long.
Habitat
Lowland rain-forest, riverine forest, Acacia woodland, coastal evergreen bushland; often persisting in secondary vegetation; 0–900 m.
Distribution
K7 P T3 T6 T7 T8 U2 Z Ivory Coast to the Sudan, south to Angola, Rhodesia and Mozambique

Native to:

Angola, Benin, Cameroon, Central African Repu, Comoros, Congo, Equatorial Guinea, Gabon, Guinea, Gulf of Guinea Is., Ivory Coast, Kenya, Madagascar, Malawi, Mozambique, Nigeria, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

Introduced into:

Assam, Florida, Malaya

Dioscorea sansibarensis Pax appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Oct 1, 2001 Cable, S. [2788], Cameroon K000109593
Faulkner, H. [2864], Tanzania 17067.000
Milne-Redhead, E. [9535], Tanzania 17071.000
Robertson, S.A. [1063], Tanzania 7324.000
Robertson, S.A. [1056], Tanzania 7325.000
Robertson, S.A. [1056], Tanzania 7326.000
Robertson, S.A. [1057], Tanzania 7327.000
Robertson, S.A. [1068], Tanzania 7429.000
Batty, M. [1055], Tanzania 7502.000
Batty, M. [1044], Tanzania 7667.000
Batty, M. [1054], Tanzania 7670.000
Batty, M. [1041], Tanzania 7675.000
Zenker [414], Cameroon K000098387 syntype
Perrier de la Bâthie, J.M.H.A. [17164], Madagascar K000098513
Perrier de la Bâthie, J.M.H.A. [17377], Madagascar K000098514
Perrier de la Bâthie, J.M.H.A. [17377], Madagascar K000098515
Perrier de la Bâthie, J.M.H.A. [15683], Madagascar K000098516
s.coll [213-12], United Kingdom K001145334
Verdcourt, B. [2407], Kenya K001146644
Brenan, J.P.M. [14644], Kenya K001146645
Tanner, R.E.S. [3515], Tanzania K001146667
Abdallah [2166], Tanzania K001146672
Haerdi, F. [500/0], Kenya K001146673
Martin, F.W. [1], Tanzania K001146681
Robertson, S.A. [1056], Tanzania K001146687
Robertson, S.A. [1063], Tanzania K001146697
Batty, M. [1055], Tanzania K001146701
Batty, M. [904], Tanzania K001146702
Nevers, G.C. de [3230], Tanzania K001146707
Faulkner, H.G. [2648], Tanzania K001146720
Vuaghan, J.H. [917], Tanzania K001146726
Burkill, I.H. [s.n.], United Kingdom K001146727
Burkill, I.H. [s.n.], United Kingdom K001146728
s.coll [[Hw417]], Mozambique K001147496
Faulkner, H. [K419], Mozambique K001147497
Balaka, J.L. [2011], Malawi K001147499
Bradley, K. [298], USA K001148819
Bradley, K. [298], USA K001148823
Robertson, S.A. [1063], Tanzania K001146699
s.coll [s.n.], United Kingdom K001146745
Anderson, A.B. [1229], Tanzania K001146718
Bradley, K. [298], USA K001148820
Qingley, F. [46], Ghana K001145322
Faden, R.B. [96/12], Tanzania K001146670
Vuaghan, J.H. [1342], Tanzania K001146723
Verdcourt, B. [2407], Kenya K001146643
s.coll [1533] K001145325
Caddick, L.R. [317], Madagascar K001148337
Andriamahay, M. [1992], Madagascar K001148336
Wallace, G.B. [520], Tanzania K001146677
Faulkner, H.G. [580], Tanzania K001146665
Robertson, S.A. [1056], Tanzania K001146688
Andriamahay, M. [1380], Madagascar K001148340
Bradley, K. [298], USA K001148824
Robertson, S.A. [1062], Tanzania K001146696
Vuaghan, J.H. [1217], Tanzania K001146724
Archibald, R.E. [750], Tanzania K001146668
Milne-Redhead, E.W.B.H. [7571D], Tanzania K001146717
Baron, R. [3799], Madagascar K001148331
Wilkin, P. [M973], Madagascar K001148335
Milne-Redhead, E.W.B.H. [s.n.], United Kingdom K001146735
Saeger, H. de [3172], Congo, DRC K001146132
Milne-Redhead, E.W.B.H. [7571C], Tanzania K001146716
Dalziel [67-13], United Kingdom K001145329
Robertson, S.A. [1057], Tanzania K001146690
Hladik, A. [6715], Mayotte K001148343
Chevalier, A.J.B. [23621], Benin K001145323
Holttum, R.E. [s.n.], Singapore K001147507
Faulkner, H.G. [580], Tanzania K001146663
Wilkin, P. [M973], Madagascar K001148334
s.coll [s.n.], United Kingdom K001145331
s.coll [1123], Tanzania K001146685
Milne-Redhead, E.W.B.H. [9535], Tanzania K001146711
Tanner, R. [3515], Tanzania K001146666
Rutherford-Smith, R.O.B. [608], Zimbabwe K001147503
Perrier de la Bâthie, H. [13253], Madagascar K001148332
s.coll [s.n.], United Kingdom K001146744
s.coll [213-12], United Kingdom K001145335
s.coll [891A], Tanzania K001146708
Batty, M. [543], Tanzania K001146704
Robertson, S.A. [1057], Tanzania K001146691
s.coll [s.n.], United Kingdom K001146740
Lowe, J. [4853] K001146129
Batty, M. [1044], Tanzania K001146703
Haerdi, F. [500/0], Kenya K001146674
Nur [s.n.], Singapore K001145330
Mhoro, B. [361], Tanzania K001146709
Fay, J.M. [2889], Central African Republic K001146125
s.coll [s.n.], United Kingdom K001146743
Bradley, K. [648], USA K001148822
Schlieben, H.J. [2063], Tanzania K001146676
Hawthorne, W. [1146], Tanzania K001146706
Milne-Redhead, E.W.B.H. [s.n.], United Kingdom K001146736
Fay, J.M. [3475], Central African Republic K001146126
Gillett, J.B. [18713], Kenya K001146647
Barter, C. [s.n.], Niger K001145327
s.coll [s.n.], United Kingdom K001146737
Hladik, A. [6482], Mayotte K001148342
s.coll [s.n.], United Kingdom K001146746
Milne-Redhead, E.W.B.H. [7571], Tanzania K001146712
Robertson, S.A. [7462], Kenya K001146642
Faden, R.B. [96/12], Tanzania K001146671
Suleiman, H.O. [310], Tanzania K001146683
Clemens, J. [22442], Singapore K001147505
Faulkner, H.G. [2573A], Tanzania K001146722
Burkill, I.H. [s.n.], United Kingdom K001146729
Saeger, H. de [3172], Congo, DRC K001146131
Faulkner, H.G. [2864], Tanzania K001146719
Greenway [s.n.], United Kingdom K001146734
Buchanan, J. [1185], Malawi K001147500
Haerdi, F. [500/0], Tanzania K001146675
Milne-Redhead, E.W.B.H. [7571B], Tanzania K001146715
Robertson, S.A. [1059], Tanzania K001146694
Barter, C. [s.n.], Niger K001145326
s.coll [172], Tanzania K001146684
Myers, J.G. [9192], Sudan K001146535
Braun [1572] K001146662
Hambler, D.J. [919], Nigeria K001145324
s.coll [s.n.], United Kingdom K001146742
Caddick, L.R. [317], Madagascar K001148338
Caddick, L.R. [317], Madagascar K001148339
Batty, M. [1041], Tanzania K001146705
Brenan, J.P.M. [14644], Kenya K001146646
Harris, B.J. [1476], Tanzania K001146682
Milne-Redhead, E.W.B.H. [9535], Tanzania K001146710
Robertson, S.A. [1062], Tanzania K001146695
s.coll [299-09], United Kingdom K001145332
Batty, M. [1054], Tanzania K001146700
Fay, J.M. [3475], Central African Republic K001146127
Robertson, S.A. [1063], Tanzania K001146698
Flamigni [4-520] K001146128
Kirk [s.n.], Malawi K001147501
Müller, T. [579], Zimbabwe K001147504
s.coll [s.n.], United Kingdom K001146741
Bradley, K. [648], USA K001148821
Ghesquiére [2709], Congo, DRC K001146130
Burkill [s.n.], Tanzania K001146730
Milne-Redhead, E.W.B.H. [s.n.], United Kingdom K001146732
Robertson, S.A. [1058], Tanzania K001146692
Faulkner, H.G. [2573A], Tanzania K001146721
Bruce, E.M. [1040], Tanzania K001146679
s.coll [s.n.], Mozambique K001147494
Letouzey, R. [13552], Cameroon K001146133
Holttum, R.E. [s.n.], Singapore K001147506
Robertson, S.A. [1059], Tanzania K001146693
Faulkner, H. [K419], Mozambique K001147495
s.coll [s.n.], United Kingdom K001146739
Mitchell, B.L. [2879], Zambia K001147502
s.coll [213-12], United Kingdom K001145333
Barthelat, F. [1288], Mayotte K001148344
Robertson, S.A. [1056], Tanzania K001146689
Faulkner, H. [K419], Mozambique K001147498
Wilkin, P. [M973], Madagascar K001148333
Milne-Redhead, E.W.B.H. [s.n.], United Kingdom K001146731
Bond, J.S. [68], Tanzania K001146669
Faulkner, H.G. [580], Tanzania K001146664
s.coll [299-09], United Kingdom K001145328
Bruce, E.M. [1040], Tanzania K001146678
Milne-Redhead, E.W.B.H. [s.n.], United Kingdom K001146733
Chase [21048], Madagascar K001148341
Milne-Redhead, E.W.B.H. [7571A], Tanzania K001146714
Bidgood, S. [1920], Tanzania K001146686
Milne-Redhead, E.W.B.H. [7571], Tanzania K001146713
s.coll [s.n.], United Kingdom K001146738
Schlieben, H.J. [2095], Tanzania K001146680
Vuaghan, J.H. [434], Tanzania K001146725
Welwitsch [4041], Angola Dioscorea macroura K000098456 holotype

First published in Bot. Jahrb. Syst. 15: 146 (1892)

Accepted by

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
  • 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.
  • Figueiredo, E., Paiva, J., Stévart, T., Oliveira, F. & Smith, G.F. (2011). Annotated catalogue of the flowering plants of São Tomé and Príncipe Bothalia 41: 41-82.
  • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141.
  • Govaerts, R., Wilkin, P. & Saunders, R.M.K. (2007). World Checklist of Dioscoreales. Yams and their allies: 1-65. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania. Revue de Taxonomie et de Nomenclature Botaniques 30: 1-307.
  • Lisowski, S. (2009). Flore (Angiospermes) de la République de Guinée Scripta Botanica Belgica 41: 1-517.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
  • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
  • Velayos, M. & al. (eds.) (2018). Flora de Guinea Ecuatorial 10: 1-491. Consejo superior de investigaciones científicas, Real jardín botánico, Madrid.
  • Wilkin, P. & Randriamboavonjy, T. (2012). Nomenclatural changes in yams of Madagascar (Dioscorea: Dioscoreaceae) Kew Bulletin 67: 63-67.

Literature

Flora of West Tropical Africa

  • Burkill in Blumea, suppl. 1: 232 (1937)
  • Burkill in Bull. Jard. Bot. Brux. 15: 348 (1939)
  • Chevalier in Kev. Bot. Appliq. 32: 14 (1952)
  • De Wildeman in Ann. Mus. Congo, Bot., sér. 5, 2: 121 (1907)
  • F.T.A. 7: 416
  • Knuth in Engl., Pflanzenr. Dioscoreac. 4, 43: 87 (1924)
  • Miège, Contrib. Dioscor. 42 (1952).
  • Perr. de la Bâthie in Not. Syst. 12: 200 (1946)
  • in Engl., Bot. Jahrb. 15: 146 (1892)

Kew Backbone Distributions

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Barthelat, F. (2019). La flore illustrée de Mayotte: 1-687. Biotope éditions.
  • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
  • Figueiredo, E., Paiva, J., Stévart, T., Oliveira, F. & Smith, G.F. (2011). Annotated catalogue of the flowering plants of São Tomé and Príncipe Bothalia 41: 41-82.
  • Lisowski, S. (2009). Flore (Angiospermes) de la République de Guinée Scripta Botanica Belgica 41: 1-517.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.

Flora of Tropical East Africa

  • A. Engler & O. Drude, Die Vegetation Der Erde, IX, Pflanzenwelt Afrikas 2: 359 (1908).
  • Bak. in Flora of Tropical Africa 7: 418 (1898).
  • Burkill & Perrier in Fl. Madag. 44: 4, fig. 1 (1950).
  • Burkill in Bulletin du Jardin Botanique de l'État a Bruxelles 15: 348 (1939).
  • F. W. Andr., The Flowering Plants of the Sudan 3: 295 (1956).
  • Harms in Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Theile C: 146 (1895).
  • Miège in Flora of West Tropical Africa, ed. 2, 3: 152 (1968).
  • Pax in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 15: 146 (1892).
  • R. Knuth in A. Engler, Das Pflanzenreich IV. 43: 87 (1924).
  • R. O. Williams, Useful and Ornamental Plants in Zanzibar and Pemba p. 233, fig. (1949).
  • Troupin, Fl. Sperm. Parc Nat. Garamba 1: 213 (1956).
  • Verdc. & Trump, Common Poisonous Pl. E. Afr.: 194, fig. 20/a–c (1969).

Flora of Tropical East Africa
Flora of Tropical East Africa
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Flora of West Tropical Africa
Flora of West Tropical Africa
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Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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 2021. 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

Kew Science Photographs
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/