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

[FWTA]

Begoniaceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:1. 1954

Habit
More or less erect succulent herb, 1–2 ft. high, with long woody rootstock, older plants straggling
Stem
Stems tinged pink
Leaves
Leaves purplish beneath
Flowers
Flowers pale pink with darker veins
Fruits
Fruits green with pink veins and white spots.

[FTEA]

Begoniaceae, Vanessa Plana, Martin J.S. Sands & Henk J. Beentje. Flora of Tropical East Africa. 2006

Type
Type: Angola, Golungo Alto, Welwitsch 875 (BM!, lecto.; COI, G, K!, iso.).
Habit
Erect, terrestrial herb 10–150 cm high (or scrambling up to 2 m), rarely branching; stem reddish or translucent, succulent, becoming woody with age; indumentum of simple hairs.
Stipules
Stipules elliptic to ovate, 1–3 cm long, caducous, boat-shaped, apex acuminate, with minute scattered glandular hairs.
Leaves
Leaves green above, reddish or purplish beneath, drying papery, asymmetrical, commonly 3–5lobed to almost palmatifid, sometimes transversely broadly ovate with 5 apices, 7–28 × 10–19 cm, base obliquely cordate, margin denticulate to serrulate to almost entire, if leaves not lobed then with 5 acute to caudate points (large teeth), apex of lobes acute to acuminate, if leaves not lobed then apex caudate to acuminate, sparsely puberulent to glabrous; venation palmate; petiole reddish, 8–24 cm long.
Inflorescences
Inflorescence axillary, unisexual or bisexual, a dichasial cyme with up to 31 flowers; peduncle 1–4 cm long; each ramification subtended by a pair of caducous ovate to broadly ovate acuminate bracts 0.7–1.4 cm long, chartaceous, with conspicuous veins; pedicels 0.3–2.3 cm long; bracteoles absent.
Flowers
Female flowers: tepals 2(–4), the outer and inner very similar to those in male flowers; ovary ellipsoid, wings absent, 3-locular; placentation parietal through 60% of the ovary; styles 3, forked at the apex, spirally twisted once, glabrous; stigmatic band yellowish green. Male flowers: tepals 2(–4), white to pink with darker venation, perianth cylinder absent; outer tepals broadly ovate, 0.5–1.4 × 0.4–1.6 cm; inner, if present, narrowly elliptic, less than 2 mm long; stamens 7–35, filaments free or fused only at the base, anthers narrowly obovoid, 1.5–2.5 mm long.
Fruits
Fruits greenish tinged with red, fleshy, ellipsoid or trigonous, 2–3 cm long, 0.6–1.2 cm in diameter, terete to triangular in cross section with narrow longitudinal ribs or furrows, indehiscent, styles and tepals often persistent until complete maturity.
Figures
Fig. 3, p. 16.
Ecology
Moist forest, especially near water; 600–1900 m.
Conservation
Least concern (LC); widespread .
Note
There is extensive leaf variation within this species ranging from almost entire to palmatifid. There is a regional tendency for southern specimens like those from Tanzania or Mozambique to possess leaves which are almost entire, while palmatifid or lobed leaves are found in Kenya and Uganda. However, this is a variable character in itself with most specimens intermediate.
Distribution
Range: Widespread in tropical Africa from Sierra Leone and Guinea throughout Central Africa to Mozambique and Madagascar Flora districts: U2 U4 K5 T 1 T2 T3 T6 T7

[FZ]

Begoniaceae, F. K. Kupicha. Flora Zambesiaca 4. 1978

Habit
Plants 19–55 cm. tall, annual.
Stem
Stems glabrous, ascending, unbranched, rooting at lower nodes.
Leaves
Leaves petiolate; lamina 7–14 cm. long, ± ovate in outline, with 5 lobes, cordate at the base; sinuses between lobes 1/5–1/2 × length of lamina; margins irregularly and very shallowly dentate; superior surface green, glabrous or very sparsely hispid, inferior surface dark green or red when living, becoming green when dry, glabrous; petiole 8–23 cm. long; stipules c. 20 × 8 mm., linear, membranous, entire-margined, those at apex of stem very conspicuous and sheathing the growing point, later caducous; axillary bud sometimes developing into a short conical spine.
Flowers
Flowers in axillary cymes with 2 dichasia; peduncles 15–30 mm. long; primary dichasial branches 2–8 mm. long. Male flowers: tepals 2, c. 9 mm. long, pale pink, suborbicular; filaments c. 1 mm. long. Female flowers: tepals 2, c. 7 mm. long, pale pink, sub-orbicular; styles divided to c. 1/2 their length, the branches stigmatic, almost straight; ovary c. 1 cm. long, fusiform, not winged, tapering into a narrow stipe c. 1 cm. long; placentae bipartite.
Bracts
Bracts like stipules but very soon caducous.
Male
Male flowers: tepals 2, c. 9 mm. long, pale pink, suborbicular; filaments c. 1 mm. long.
Female
Female flowers: tepals 2, c. 7 mm. long, pale pink, sub-orbicular; styles divided to c. 1/2 their length, the branches stigmatic, almost straight; ovary c. 1 cm. long, fusiform, not winged, tapering into a narrow stipe c. 1 cm. long; placentae bipartite.
Fruits
Fruit a berry 20–30 × 8–12 mm., ellipsoid, stipe 10–22 mm. long.

Native to:

Angola, Burundi, Cabinda, Cameroon, Congo, Gabon, Ghana, Guinea, Gulf of Guinea Is., Ivory Coast, Kenya, Liberia, Madagascar, Malawi, Mozambique, Nigeria, Rwanda, Sierra Leone, Tanzania, Togo, Uganda, Zaïre

Begonia oxyloba Welw. ex Hook.f. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Oct 1, 2002 Ensermu, K. [3525], Cameroon K000008538
Oct 1, 2002 Ensermu, K. [3566], Cameroon K000008539
Jul 1, 2001 Cable, S. [3505], Cameroon K000108099
Jul 1, 2001 Cable, S. [2939], Cameroon K000108100
Jul 1, 2001 Cable, S. [3419], Cameroon K000108129
Jul 1, 2001 Etuge, M. [2804], Cameroon K000108112
Jul 1, 2001 Etuge, M. [2568], Cameroon K000108113
Jul 1, 2001 Etuge, M. [2895], Cameroon K000108127
May 1, 2001 Sidwell, K. [353], Cameroon K000050615
May 1, 2001 Ryan, P. [307], Cameroon K000050601
Jan 1, 1996 Cable, S. [1311], Cameroon K000085781
Jan 1, 1996 Cable, S. [1323], Cameroon K000085791
Jan 1, 1996 Cable, S. [1323], Cameroon K000085792
Dec 1, 1994 Thomas, D.W. [9183], Cameroon K000011118
Dec 1, 1994 Cheek, M. [3788], Cameroon K000085488
Dec 1, 1994 Cheek, M. [3759], Cameroon K000085497
Dec 1, 1994 Cable, S. [482], Cameroon K000011123
Dec 1, 1994 Cable, S. [297], Cameroon K000011122
Dec 1, 1994 Tchouto (Mbatchou), P. [384], Cameroon K000011119
Dec 1, 1994 Tekwe, C. [120], Cameroon K000011114
Dec 1, 1994 Tekwe, C. [183], Cameroon K000011115
Dec 1, 1994 Tekwe, C. [293], Cameroon K000011116
Dec 1, 1994 Kwangue, A. [119], Cameroon K000011120
Jan 1, 1994 Wheatley, J.I. [474], Cameroon K000011117
Jan 1, 1994 Cable, S. [116], Cameroon K000050627
Jan 1, 1994 Hunt, L. V. [71], Cameroon K000540677
Jan 1, 1994 Balding, S. [4], Cameroon K000011121
Jan 1, 1987 Thomas, D.W. [4501], Cameroon K000051361
16616.000
Dawkins, H.C. [768], Uganda 5175.000
Drummond, R.B. [3348], Tanzania 5176.000
Drummond, R.B. [1865], Tanzania 9975.000
Chevalier, A. [21417], Ivory Coast K000272574
Welwitch [875], Angola K000242760
Cheek, M. [8992], Cameroon K000108134
Bridson, D. [352], Rwanda 42118.000
Baron, R. [9], Madagascar K000242736 holotype
Migeod, F. [231], Cameroon K000050420
Mann G. [1274], Cameroon K000050419 Unknown type material
Dunlap [17], Cameroon K000050418

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 2: 578 (1871)

Accepted by

  • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
  • 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.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

Literature

Flora of West Tropical Africa

  • Engl. Pflanzenw. Afr. 3, 2: 614 (1921).
  • Chev. Bot. 298.
  • in F.T.A. 2: 573 (1871)

Kew Backbone Distributions

  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.

Flora of Tropical East Africa

  • B.J.B.B. 63: 286, fig. 6, map (1994).
  • U.K.W.F. ed. 2: 92 (1994)
  • Cribb & Leedal, Mountain Fl. S Tanzania: 55, t. 8a (1982)
  • F.Z. 4: 500 (1978)
  • F.C.B., Begoniaceae: 13 (1969)
  • Oliv., F.T.A. 2: 573 (1871)

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

Flora of West Tropical Africa
Flora of West Tropical 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/

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