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Brummitt, R.K., Chikuni, A.C., Lock, J.M. & Polhill, R.M. (2007) Leguminosae Subfamily Caesalpinioideae Flora Zambesiaca 3(2)
Hoyle, A.C. (1967) Brachystegia (in the Leguminosae subfamily Caesalpinioideae) Flora of Tropical East Africa
Trees, mostly c. 10−20 m, but often with dwarf forms over shallow soils, plus a small number of suffrutices, rare in Zambia; bark mostly rough, smooth in a few species; leaves paripinnate, leaflets in 2-numerous pairs; though variable within species, the leaves provide the most reliable features for identifying the species; flowers in spikes or panicles, mostly terminal and axillary, occasionally on second year wood; sepals much reduced, petals rudimentary or absent; ovary pubescent but pod always glabrous; pod woody, oblong to obovate, with flanges along the top (ventral) suture. Worldwide: 30 species in tropical Africa, 13 species in the Flora Zambesiaca region, 13 species in Zambia. Mozambique: 15 taxa. The larvae of the following species of insect eat species of this genus:
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| Species | FZ divisions | Content |
| allenii Burtt Davy & Hutch. | N,T | Description, Image |
| boehmii Taub. | N,T,MS | Description, Image |
| bussei Harms | N,Z,T | Description, Image |
| floribunda Benth. | T | Description, Image |
| glaucescens Hutch. & Burtt Davy | N,Z,MS | Description, Image |
| glaucescens × spiciformis | ||
| longifolia Benth. | N,Z,T | Description, Image |
| manga De Wild. | N,Z,T | Description, Image |
| microphylla Harms | Description | |
| oblonga Sim[End][CR] | N,Z | |
| spiciformis Benth. | N,Z,MS,GI,M | Description, Image |
| spiciformis × microphylla | ||
| stipulata De Wild. | T,MS | Description, Image |
| torrei Hoyle | N,T,MS,GI | Description |
| utilis Hutch. & Burtt Davy | N,Z,T,MS | Description, Image |
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