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This species is accepted, and its native range is NE. Tropical Africa.
Combretum collinum

[FZ]

Combretaceae, A. W. Exell. Flora Zambesiaca 4. 1978

Morphology General Habit
Small semideciduous tree up to c. 17 m. high or shrub; crown rounded to flat; bark reddish-brown to grey or black or pale yellow to creamy-brown.
Morphology Leaves
Leaves opposite or alternate or verticillate; lamina up to 19(25) x 8(9) cm., very variable in shape, when dried brown or buff or golden-brown or silvery and usually somewhat “metallic” in appearance, densely tomentose to nearly glabrous (except for scales), conspicuously lepidote except when the scales are hidden by the indumentum; lateral nerves 6–14 pairs; reticulation usually (but not always) fairly prominent beneath; petiole usually up to 3(5) cm. long but very variable.
Morphology Reproductive morphology Inflorescences
Inflorescences of axillary spikes or panicles up to 10 cm. long, usually in the axils of bracts or reduced leaves on the current year’s shoots.
Morphology Reproductive morphology Flowers
Flowers sessile, white or yellowish-green.
Morphology Reproductive morphology Flowers Receptacle
Lower receptacle 2–4 mm. long, glabrous (except for scales) or hairy, lepidote; upper receptacle 3·5 x 2·5 mm., campanulate at the base and cupuliform at the apex, lepidote, glabrous (except for scales) to tomentose.
Morphology Reproductive morphology Flowers Calyx
Sepals 0·8 x 1·2 mm., broadly triangular.
Morphology Reproductive morphology Flowers Corolla
Petals 1·5–2·5 x 1–2·5 mm., transversely elliptic to obovate or subcircular, somewhat emarginate, unguiculate with the claw up to 1 mm. long, glabrous (rarely with a few hairs at the apex).
Morphology Reproductive morphology Flowers Androecium Stamens
Stamen-filaments 4–4·5 mm. long; anthers 0·9 mm. long.
Morphology Reproductive morphology Flowers Disc
Disk 2 mm. in diam. with pilose margin free for c. 1 mm.
Morphology Reproductive morphology Flowers Gynoecium Style
Style 4 mm. long, glabrous or pubescent.
Morphology Reproductive morphology Fruits
Fruit brown or greyish-brown or reddish-grey to dark-purple, usually somewhat “metallic” in appearance, 2·5–5·5 x 2–5·5 cm., variable in shape, lepidote with scales often contiguous, glabrous (except for scales) to densely hairy, glossy or dull, wings variable in breadth, stipe up to 2 cm. long.
Morphology Reproductive morphology Seeds Cotyledons
Cotyledons 2, arising below soil level on a stalk formed by their connate petioles, free part of petiole 2 mm. long.
Morphology General Scales
Scales 80–180µ in diam., extensively divided by many radial and tangential walls to give 16–40 marginal cells; scales often contiguous on the lower epidermis of the leaf.

[FTEA]

Combretaceae, G. E. Wickens. Flora of Tropical East Africa. 1973

Morphology General Habit
Small tree up to ± 12 m. high or a coppicing shrub; bark reddish brown or pale yellow.
Morphology Leaves
Leaves opposite or alternate or verticillate; lamina coriaceous or subcoriaceous, very variable in shape, up to 22 cm. long and 8 cm. wide, upper surface drying reddish olive or yellowish brown, usually somewhat “metallic” in appearance, lower surface green, buff or silvery, glabrous (except for scales) to densely tomentose, conspicuously lepidote except when the scales are hidden by the indumentum; scales contiguous or not; lateral nerves 6–20 pairs, reticulation sometimes prominent; petiole 1–4 cm. long.
Morphology Reproductive morphology Inflorescences
Inflorescences simple spikes or panicles up to 10 cm. long, axillary or supra-axillary from bracts or reduced leaves on the current year’s shoots (the panicle appears to be derived by the suppression of these leaves or bracts), glabrous or pubescent.
Morphology Reproductive morphology Flowers
Flowers (fig. 3/10, p. 14) yellow, cream or white, fragrant.
Morphology Reproductive morphology Flowers Receptacle
Lower receptacle glabrous (except for scales) or hairy, lepidote; upper receptacle campanulate at the base and cupuliform at the apex, generally 3.5 mm. long, 2.5 mm. wide, or, in subsp. gazense, 5–5.5 mm. long, 3.5–4 mm. wide, glabrous (except for scales) to tomentose, lepidote.
Morphology Reproductive morphology Flowers Calyx
Sepals broadly triangular.
Morphology Reproductive morphology Flowers Corolla
Petals transversely elliptic to obovate or subcircular, 1.5–2.5 mm. long, 1–2.5 mm. wide, somewhat emarginate, with a claw up to 1 mm. long, glabrous (very rarely with a few hairs at the apex).
Morphology Reproductive morphology Flowers Androecium Stamens
Stamen-filaments 4–4.5(–6.5 in subsp. gazense) mm. long; anthers 0.9 mm. long.
Morphology Reproductive morphology Flowers Disc
Disk 2 mm. in diameter, with pilose margin free for ± 1 mm.
Morphology Reproductive morphology Flowers Gynoecium Style
Style up to 7.5 mm.
Morphology Reproductive morphology Fruits
Fruit (fig. 4/10, p. 15) brown, reddish brown or greyish brown to dark purple, usually somewhat “metallic” in appearance, variable in shape, 2.5–5.9 cm. long, lepidote with the scales often contiguous, glabrous (except for scales) to densely pubescent, glossy or dull; wings variable in breadth; stipe up to 8(–15) mm. long.
Morphology Reproductive morphology Seeds Germination
Cotyledons 2, arising below soil-level on a stalk formed by their connate petioles, free part of petiole 2 mm. long (subsp. dumetorum from Angola differs in having a “normal” type of germination with the cotyledons arising above soil-level on short, quite free petioles and may be specifically distinct).
Morphology General Scales
Scales (fig. 1/10, p. 12) discoid or funnel-shaped, 55–180 μ in diameter, usually extensively divided by many radial and tangential walls to give ± 10–40 marginal cells.
Distribution
widespread in tropical and subtropical Africa K2 K3 K4 K5 T1 T2 T3 T4 T5 T6 T7 T8 U1 U2

Native to:

Angola, Benin, Botswana, Burkina, Burundi, Cameroon, Caprivi Strip, Central African Repu, Chad, Eritrea, Ethiopia, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, KwaZulu-Natal, Malawi, Mali, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Rwanda, Senegal, Somalia, Sudan, Swaziland, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

Combretum collinum Fresen. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
May 1, 2008 Lisanework [6201], Ethiopia K000565474
Jan 1, 1992 Raynal-Roques, A. [22095], Burkina Faso K000211780

First published in Mus. Senckenberg. 2: 153 (1837)

Accepted by

  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
  • 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. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Kalema, J. & Beentje, H. (2012). Conservation checklist of the trees of Uganda: 1-235. Kew Publishing, Royal Botanic Gardens, Kew.
  • Launert, E. (ed.) (1978). Flora Zambesiaca 4: 1-658. Royal Botanic Gardens, Kew.
  • Mannheimer, C.A. & Curtis, B.A. (eds.) (2009). Le Roux and Müller's field guide to the trees and shrubs of Namibia, rev. ed.: 1-525. Macmillan Education Namibia, Windhoek.
  • Masharabu, T., Bigendako, M.J., Lejoly, J., Nkengurutse, J., Noret, N., Bizuru, E. & Bogaert, J. (2010). Etude analytique de la flore et de la végétation du Parc National de la Ruvubu, Burundi International Journal of Biological and Chemical Sciences 4: 834-856.
  • Wickens, G.E. (1973). Flora of Tropical East Africa, Combretaceae: 1-99.

Literature

Kew Backbone Distributions

  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.

Flora of Tropical East Africa

  • Engl. & Diels in Monographieen Afrikanischer Pflanzen-Familien und Gattungen 3: 56 (1899).
  • Engl., Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Theile C: 290 (1895).
  • Exell in Kirkia 7: 179 (1970).
  • Fresen. in Mus. Senckenb. 2: 153 (1837).
  • Okafor in Bol. Soc. Brot., sér. 2, 41: 137–150 (1967).

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

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

Plants and People Africa
Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
© Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/