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This species is accepted, and its native range is Tanzania to S. Africa.
A specimen from Kew's Herbarium

[FTEA]

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

Morphology General Habit
Tuber perennial, woody, irregularly shaped, often with flattened sometimes horizontal lobes, up to 30 cm. long.
Morphology General Indumentum
Plant glabrous.
Morphology Stem
Twining stems up to 9 m. long, terete.
Morphology Leaves
Leaves alternate; petiole up to 40(–60) cm. long; blade very variable in shape and size, heart-shaped or triangular in outline, entire or 2–6-lobed in the lower half (see fig. 3/4–6, p. 8), with a short acute acumen, up to 12 cm. long and 15.5 cm. wide, often proportionally much narrower.
Morphology Reproductive morphology Inflorescences
Inflorescences directed downwards, single in the leaf-axils. Male raceme dense, up to 5(–6) cm. long, often much shorter; pedicels ± 2 mm. long; perianth cup-shaped, ± 10(–13) mm. across when flattened. Stamens 6. Female inflorescences spicate, up to 35 cm. long; flowers directed downward or somewhat spreading; perianth star-shaped, ± 8 mm. in diameter. Ovary ± 8 mm. long.
sex Male
Male raceme dense, up to 5(–6) cm. long, often much shorter; pedicels ± 2 mm. long; perianth cup-shaped, ± 10(–13) mm. across when flattened. Stamens 6.
sex Female
Female inflorescences spicate, up to 35 cm. long; flowers directed downward or somewhat spreading; perianth star-shaped, ± 8 mm. in diameter. Ovary ± 8 mm. long.
Morphology Reproductive morphology Fruits
Capsule as in fig. 1/7, p. 4, up to 3.5 cm. long and 2 cm. in diameter.
Morphology Reproductive morphology Seeds
Seeds (fig. 1/7a) with a broad wing at each end joined by a narrower wing, oblong, 16 mm. long, 10 mm. wide.
Habitat
Near rock outcrops in woodland and in Combretum thickets; 300–1350 m.
Distribution
T1 T3 T4 T5 T6 T7 T8

Native to:

Angola, KwaZulu-Natal, Malawi, Mozambique, Northern Provinces, Tanzania, Zambia, Zaïre, Zimbabwe

Dioscorea buchananii Benth. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Chase, N.C. [5457], Zimbabwe 17192.000
Chase, N.C. [5430], Zimbabwe 17195.000
Chase, N.C. [5432], Zimbabwe 17197.000
Chase, N.C. [5427], Zimbabwe 17198.000
Chase, N.C. [5431], Zimbabwe 17199.000
Chase, N.C. [5433], Zimbabwe 17201.000
Buchanan [358] K000098509 syntype
Buchanan [173] K000098510 syntype
Brummitt, R.K. [16392], Malawi K001147938
Brummitt, R.K. [16405], Malawi K001147941
Wilkin, P. [798], Malawi K001147944
Bingham, M.G. [10380], Zambia K001147954
Eyles Herbarium [7089], Zimbabwe K001147969
Chase, N.C. [5430], Zimbabwe K001147975
Chase, N.C. [5431], Zimbabwe K001147982
Teague, A.J. [536], Zimbabwe K001147979
Dehn, G. [601], Zimbabwe K001147960
Dehn, G. [601], Zimbabwe K001147962
Wilson, A.P. [255], Zimbabwe K001147965
Chase, N.C. [1992], Zimbabwe K001147957
Trapnell, C.G. [1117] K001147950
Bingham, M.G. [1108], Zimbabwe K001147961
s.coll [s.n.], Mozambique K001147933
Chase, N.C. [5427], Zimbabwe K001147984
Martin, F.W. [11], Tanzania K001147105
Brummitt, R.K. [16392], Malawi K001147939
Eyles, F. [3847], Zimbabwe K001147973
Drummond, R.B. [5755], Zimbabwe K001147992
Buchanan, J. [175], Malawi K001147936
Eyles, F. [3847], Zimbabwe K001147974
Greenway, P.J. [11436], Tanzania K001147104
Witte, G.F. de [3453], Congo, DRC K001146308
Trapnell, C.G. [1117] K001147949
Faulkner, H.G. [K297], Mozambique K001147930
Wilkin, P. [798], Malawi K001147942
Faulkner, H.G. [A56], Angola K001147997
s.coll [404], Zimbabwe K001147967
s.coll [2893], Zimbabwe K001147955
Faulkner, H.G. [K295], Mozambique K001147929
s.coll [2635] K001147956
Barbosa, L.A.B. [3332], Mozambique K001147934
Chase, N.C. [5433], Zimbabwe K001147990
Trapnell, C.G. [1117] K001147948
Bingham, M.G. [10290], Zambia K001147953
Chase, N.C. [203], Zimbabwe K001147958
Rutherford-Smith, R.O.B. [719], Zimbabwe K001147983
Phiri, P.S.M. [2192], Zambia K001147951
Chase, N.C. [5470], Zimbabwe K001147971
Luke, P.A. [9340], Tanzania K001147107
Brummitt, R.K. [16405], Malawi K001147940
s.coll [4479], Zimbabwe K001147987
Richards, M.A.E. [17967], Tanzania K001147110
s.coll [2034], Tanzania K001147100
s.coll [601], Zimbabwe K001147959
Eyles, F. [4479], Zimbabwe K001147988
Chase, N.C. [5433], Zimbabwe K001147991
Bingham, M.G. [10290], Zambia K001147952
Jansen, P.C.M. [7532], Mozambique K001147932
Chase, N.C. [5432], Zimbabwe K001147995
Teague, A.J. [535], Zimbabwe K001147972
Chase, N.C. [5471], Zimbabwe K001147996
Greenway, P.J. [11436], Tanzania K001147102
Wilson, A.P. [255], Zimbabwe K001147970
s.coll [505], Tanzania K001147101
Trapnell, C.G. [1117], Zambia K001147945
Chase, N.C. [202], Zimbabwe K001147964
Trapnell, C.G. [1117], Zambia K001147946
Chase, N.C. [5451], Zimbabwe K001147986
Chase, N.C. [5430], Zimbabwe K001147976
Biegel, H.M. [2893], Zimbabwe K001147981
Salubeni, A.J. [1014], Malawi K001147937
Eyles, F. [921], Zimbabwe K001147963
Gilliland, H.B. [Q1776], Zimbabwe K001147993
Bjornstad, A. [AB2144], Tanzania K001147106
Greenway, P.J. [11436], Tanzania K001147103
Wilson, A.P. [255], Zimbabwe K001147966
s.coll [404], Zimbabwe K001147968
Faulkner, H.G. [K295], Mozambique K001147931
Wilkin, P. [798], Malawi K001147943
Richards, M.A.E. [17967], Tanzania K001147109
Faulkner, H.G. [54], Mozambique K001147935
Trapnell, C.G. [1117], Zambia K001147947

First published in Hooker's Icon. Pl. 14: t. 1397 (1882)

Accepted by

  • 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.
  • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.

Literature

Flora of Tropical East Africa

  • Bak. in Flora of Tropical Africa 7: 415 (1898).
  • Benth. in Hook., Ic. Pl. 14: 76, tt. 1397, 1398 (1882).
  • R. Knuth in A. Engler, Das Pflanzenreich IV. 43: 185 (1924).

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

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