Family:
Fabaceae Lindl.

Pterocarpus angolensis DC.

This species is accepted, and its native range is Congo to Tanzania and S. Africa.

[FZ]

Flora Zambesiaca Leguminosae subfamily Papillionoideae byJ.M. Lock*

Morphology General Habit
Deciduous tree up to 18 m tall; crown rounded or spreading; bark greyish-brown, subquadrangular-fissured, exuding reddish sap when slashed. Deciduous tree up to 18 m tall; crown rounded or spreading; bark greyish-brown, subquadrangular-fissured, exuding reddish sap when slashed.
Morphology General Indumentum
Young parts greyish or brownish subsericeous. Young parts greyish or brownish subsericeous.
Morphology Leaves
Leaves 18–35 cm long; petiole 2.5–5 cm long, rachis 12–25 cm long, puberulous, glabrescent; petiolules 3–5 mm long; leaflets (4)5–8(9) on each side of the rachis, 3–7 × 2.5–4 cm, ovate to elliptic or subelliptic, obtuse to acuminate-acute at the apex, broadly obtuse or rounded or slightly cordate at the base, light green, glabrous on upper surface, paler appressed-pubescent and glabrescent beneath; lateral primary nerves in 12–18 pairs, secondary ones similar, rather close to each other; stipules 10–18 mm long, linear, caducous. Leaves 18–35 cm long; petiole 2.5–5 cm long, rachis 12–25 cm long, puberulous, glabrescent; petiolules 3–5 mm long; leaflets (4)5–8(9) on each side of the rachis, 3–7 × 2.5–4 cm, ovate to elliptic or subelliptic, obtuse to acuminate-acute at the apex, broadly obtuse or rounded or slightly cordate at the base, light green, glabrous on upper surface, paler appressed-pubescent and glabrescent beneath; lateral primary nerves in 12–18 pairs, secondary ones similar, rather close to each other; stipules 10–18 mm long, linear, caducous.
Morphology Reproductive morphology Inflorescences
Inflorescence of lateral racemes borne on new shoots before the leaves, rarely also axillary, fulvous-pubescent, glabrescent; bracts and bracteoles 4–7 mm long, narrowly lanceolate to linear, caducous. Inflorescence of lateral racemes borne on new shoots before the leaves, rarely also axillary, fulvous-pubescent, glabrescent; bracts and bracteoles 4–7 mm long, narrowly lanceolate to linear, caducous.
Morphology Reproductive morphology Flowers
Flowers 15–18 mm long; pedicels 8–18 mm long. Flowers 15–18 mm long; pedicels 8–18 mm long.
Morphology Reproductive morphology Flowers Calyx
Calyx 7–10 mm long, brownish subsericeous; upper teeth c.1.5 mm long, deltoid, others narrowly triangular, acute, 1.5–3.5 mm long. Calyx 7–10 mm long, brownish subsericeous; upper teeth c.1.5 mm long, deltoid, others narrowly triangular, acute, 1.5–3.5 mm long.
Morphology Reproductive morphology Flowers Corolla
Standard petal 11–15 mm in diameter, subcircular, emarginate, reflexed-patent, base narrowly decurrent into the c.3.5 mm long claw; wings 11–14 × 5.5–6 mm, broadly obovate, auriculate, claw 3.5–4.5 mm long; keel petals 10.5–12.5 × 3.5 mm, dorsally slightly overlapping and often apparently fused at the overlap, auricle obtuse, claw 5 mm long. Standard petal 11–15 mm in diameter, subcircular, emarginate, reflexed-patent, base narrowly decurrent into the c.3.5 mm long claw; wings 11–14 × 5.5–6 mm, broadly obovate, auriculate, claw 3.5–4.5 mm long; keel petals 10.5–12.5 × 3.5 mm, dorsally slightly overlapping and often apparently fused at the overlap, auricle obtuse, claw 5 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 10, fused, the tube split to the base on the upper side and variously split on the opposite side to give two groups of 5 stamens, with the upper stamen fused or not with the rest. Stamens 10, fused, the tube split to the base on the upper side and variously split on the opposite side to give two groups of 5 stamens, with the upper stamen fused or not with the rest.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 3–4-ovulate, septate between the ovules, stipitate, densely appressed-pilose; style 4–5 mm long, glabrous towards the tip, stigma small.
Morphology Reproductive morphology Fruits
Pod 1(2)-seeded, circular or subcircular, 6.5–13 cm in diameter, wing thin and stiff, undulate, usually asymmetric at the base, densely setose in centre; style-remains bent down to stipe level or overlapping the stipe; pods sometimes replaced by subspherical bristly galls 10–15 mm in diameter. Pod 1(2)-seeded, circular or subcircular, 6.5–13 cm in diameter, wing thin and stiff, undulate, usually asymmetric at the base, densely setose in centre; style-remains bent down to stipe level or overlapping the stipe; pods sometimes replaced by subspherical bristly galls 10–15 mm in diameter.
Morphology Reproductive morphology Seeds Germination
Seedling (from Fanshawe 1009 (K)): germination epigeal, hypocotyl short; cotyledons 2.5–3.5 × 1.4–1.8 cm. First true leaves simple; stipules 4–5 mm long, puberulous; petiole 8–12 mm long, puberulous; lamina 1.5–3.5 × 1–3.5 cm, elliptic or circular, puberulous on the margin, otherwise glabrous, lateral nerves and reticulation visible on both surfaces.
Distribution
Also in Tanzania, Congo, Angola, Namibia, South Africa (Mpumalanga and KwaZulu-Natal Provinces) and Swaziland.
Ecology
Widespread in miombo and other deciduous woodlands, often co-dominant, and in wooded grassland, on sandy soils and granite outcrops; 0–1600 m.
Conservation
Conservation notes: A widespread taxon, sometimes exploited for timber but no evidence of scarcity or decline. Lower Risk, Least Concern.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 3–4-ovulate, septate between the ovules, stipitate, densely appressed-pilose; style 4–5 mm long, glabrous towards the tip, stigma small.
Morphology Reproductive morphology Seeds
Seeds oblong-subreniform. Seeds oblong-subreniform.
Seedling
Seedling (from Fanshawe 1009 (K)): germination epigeal, hypocotyl short; cotyledons 2.5–3.5 × 1.4–1.8 cm. First true leaves simple; stipules 4–5 mm long, puberulous; petiole 8–12 mm long, puberulous; lamina 1.5–3.5 × 1–3.5 cm, elliptic or circular, puberulous on the margin, otherwise glabrous, lateral nerves and reticulation visible on both surfaces.

[FTEA]

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

Morphology General Habit
Deciduous tree, 5–20(–30) m. tall, with an open spreading crown, rarely (and not in East Africa) a shrub 3–4 m. tall; bark reticulately fissured, rough, greyish-brown to dark grey; slash exuding red sap.
Morphology Branches
Branchlets brownish or silvery-grey pubescent to floccose-tomentose, tardily glabrescent.
Morphology Leaves
Leaves up to 22–35(–45) cm. long; stipules linear-lanceolate to oblong-elliptic, attenuate, (0.6–)1–2 cm. long, caducous; lateral leaflets (5–)6–9 on either side, broadly lanceolate to elliptic, elliptic-oblong or elliptic-obovate, up to 5–10 cm. long and 3.5–5.5 cm. wide, narrowed to the variously developed but generally short mucronate acumen, rounded to slightly cordate at base, usually hairy on both surfaces but generally soon glabrescent above and sometimes beneath as well, with ± 10–14 fine fairly closely spaced primary lateral nerves and a similar number of well-developed secondary lateral nerves giving a striate appearance; reticulate venation prominulous on both surfaces.
Morphology Reproductive morphology Inflorescences
Racemes, or (fide F.C.B.) rarely sparsely branched panicles, precocious or in the axils of young leaves, 6–12 cm. long; axes densely hairy; bracts lanceolate to elliptic-oblong, 5–8 mm. long, caducous; bracteoles near top of the 8–15 mm. long pedicel, linear to linear-lanceolate, 3–8 mm. long, caducous.
Morphology Reproductive morphology Flowers Calyx
Calyx 8–10 mm. long, densely appressed pubescent to tomentose outside but practically glabrous on the lobes inside.
Morphology Reproductive morphology Flowers Corolla
Corolla golden-yellow to orange, 16–20 mm. long; blade of standard suborbicular to oblate with the sides soon folded back in open flowers, marginally crimped; wings broad, exceeding the keel and nearly as long as the standard.
Morphology Reproductive morphology Fruits
Fruit suborbicular, (8–)10–15 cm. long, with a 1–2.5 cm. long stipe and a broad undulate wing bearing the style basally or basi-laterally, pubescent, also with a mass of long rigid plumose bristles over the central thickened seed-bearing part and smaller ones peripherally, inconspicuously venose.
Figures
Fig. 17, p. 90.
Habitat
Brachystegia and other deciduous woodland, wooded grassland, not infrequently left in areas cleared for cultivation; 300–1650 m.
Distribution
widespread in southern Africa from Tanganyika and the southern Congo to Angola, South West Africa, the Transvaal and Swaziland T1 T2 T3 T4 T5 T6 T7 T8

[ILDIS]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Zambezian woodland
Morphology General Habit
Perennial, Not climbing, Shrub/Tree
Vernacular
African Teak, Muninga, Transvaal Teak

[ILDIS]
Use
Chemical products, Medicine, Wood

Native to:

Angola, Botswana, Caprivi Strip, Congo, KwaZulu-Natal, Malawi, Mozambique, Namibia, Northern Provinces, Swaziland, Tanzania, Zambia, Zaïre, Zimbabwe

Pterocarpus angolensis DC. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Jan 1, 1969 Gossweiler, J. [1372], Angola K001294227 Yes
Jan 1, 1969 Gossweiler, J. [1387], Angola K001294226 Yes
Jan 1, 1965 Busse, W. [144], Tanzania K000379360 Yes
Jan 1, 1960 Gossweiler, J. [13733], Angola K000508676 Yes
Brenan, J.P.M. [7981], Zambia 764.000 No
Pope, G. [858], Botswana K000282915 Yes
Baines, T. [s.n.] K000379345 Yes
Welwitsch [1863], Angola K000379346 Yes
Welwitsch [1864], Angola K000379347 Yes
Brummitt, R.K. [8494], Malawi K000210508 Yes
Brass, L.J. [17879], Malawi K000210509 Yes
Purves, J.M. [210], Malawi K000210510 Yes
Tawakali, E.J. [1160], Malawi K000210513 Yes
Mendouça, F.A. [319], Mozambique K000210517 Yes
Grandvaux Barbosa, L.A. [4537], Mozambique K000210516 Yes
de Lemos, F. [53], Mozambique K000210515 Yes
Grandvaux Barbosa, L.A. [4383], Mozambique K000210514 Yes
Richards, H.M. [1389], Zambia K000210519 Yes
van Rensburg, H.J. [2745], Zambia K000210521 Yes
Donnelly, P.H. [217 714], Zimbabwe K000210523 Yes
Harris, T. [65], Mozambique K000545057 Yes
Groenendijk, E.M.C. [2103], Mozambique K000210518 Yes
Collinson, R. [s.n.], Malawi K000210512 Yes
Smith, P.A. [1956], Botswana K000282914 Yes
Pawek, J. [5853], Malawi K000210511 Yes
Milne-Redhead, E. [4559], Zambia K000210520 Yes
D.B.F. [1510], Zambia K000210522 Yes
Brass, L.J. [17976], Malawi K000210507 Yes
Chapman, J.D. [8852], Malawi K000210506 Yes

First published in Prodr. 2: 419 (1825)

Accepted by

  • Brummitt, R.K. & al. (2007). Flora Zambesiaca 3(3): 1-258. Royal Botanic Gardens, Kew.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • 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.
  • 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.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Timberlake, J.R., Bayliss, J., Alves, T., Francisco, J., Harris, T., Nangoma, D. & de Sousa, C. (2009). Biodiversity and Conservation of Mchese Mountain, Malawi. Report produced under the Darwin Initiative Award 15/036: 1-71. Royal Botanic Gardens, Kew.

Literature

Flora Zambesiaca

  • Prodr. 2: 419 (1825).
  • —Baker f., Legum. Trop. Africa: 544 (1929).
  • —Barbosa & Torre in Garcia de Orta 5: 126 (1957).
  • —Gibbs in J. Linn. Soc., Bot. 37: 426 (1906).
  • —Gomes e Sousa, Dendrol. Moçamb. 1: 201 (1950).
  • —Hauman in F.C.B. 6: 25 (1954).
  • —M. Coates Palgrave, Trees Sthn. Africa: 389 (2002).
  • —Mendonça & Torre in Mem. Junta Invest. Ultramar, sér.Bot. 1: 29 (1950).
  • —Miller in J. S. Afr. Bot. 18: 35 (1952).
  • —Palmer & Pitman, Trees Sthn. Africa: 937–941 (1972).
  • —Pardy in Rhod. Agric. J. 48: 322 (1951).
  • —Polhill in F.T.E.A., Legum., Pap.: 89, fig.17 (1971).
  • —Schreiber in Merxmüller, Prodr. Fl. SW Afrika, fam. 60: 97 (1970).
  • —Sousa in C.F.A. 3: 357 (1966).
  • —White, F.F.N.R.: 162 (1962).

Kew Backbone Distributions

  • Brummitt, R.K. & al. (2007). Flora Zambesiaca 3(3): 1-258. Royal Botanic Gardens, Kew.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • 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.
  • 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.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Timberlake, J.R., Bayliss, J., Alves, T., Francisco, J., Harris, T., Nangoma, D. & de Sousa, C. (2009). Biodiversity and Conservation of Mchese Mountain, Malawi. Report produced under the Darwin Initiative Award 15/036: 1-71. Royal Botanic Gardens, Kew.

Flora of Tropical East Africa

  • Bak. f., Leguminosae of Tropical Africa: 544 (1929).
  • Boaler, M.O.D. Overseas Res. Publ. 12 (1966).
  • Coates Palgrave, Trees of Centr. Afr.: 329, t. and photo. (1957).
  • DC., Prodr. 2: 419 (1825).
  • E. P. Sousa in Consp. Fl. Angol. 3: 357 (1966).
  • F. White, Forest Flora of Northern Rhodesia p. 162 (1962).
  • Harms in A. Engler & O. Drude, Die Vegetation Der Erde, IX, Pflanzenwelt Afrikas 3 (1): 637 (1915).
  • Hauman in Flore du Congo Belge et du Ruanda-Urundi, 6: 25 (1954).
  • J.P.M. Brenan, Check-lists of the Forest Trees and Shrubs of the British Empire no. 5, part II, Tanganyika Territory p. 436 (1949).
  • Rojo in Phanerogam. Monogr. 6: 30 (1971).

International Legume Database and Information Service

  • Gillett, J. B. et al. (1971). Papilionoideae. In: Fl. Trop. E. Africa, Milne-Redhead & Polhill
  • Palmer, E. & Pitman, N. (1977). Trees of Southern Africa, Vol. 2
  • Robyns, W. (Ed.) (1954). Flore du Congo Belge Vol. 6. Dalbergieae, Vicieae, Phaseoleae
  • Robyns, W. (Ed.) (1954). Flore du Congo Belge Vol. 6. Dalbergieae, Vicieae, Phaseoleae.
  • Watt, J. M. & Breyer-Brandwijk, M (1962). Medicinal & Poisonous Plants of Southern & Eastern Africa

  • 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

    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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 2022. 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 2022. 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

  • Wood Anatomy Microscope Slides

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