Vachellia sieberiana (DC.) Kyal. & Boatwr.

[FTEA]

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

Morphology General Habit: Tree 5–18 m. high; bark usually grey and rough on trunk, sometimes light brown, or yellowish and flaking especially on branches.
Morphology Branches: Young branchlets glabrous to tomentose, eglandular, green to grey or yellowish, later grey; outer bark then usually flaking away to expose an olive or yellow inner layer.
Morphology Leaves Stipules: Stipules spinescent, straight, up to 9(–12.5) cm. or more long, whitish; “ant-galls” and other prickles absent.
Morphology Leaves: Leaves:rhachis 2.5–10 cm. long; pinnae mostly 6–23(–35) pairs; leaflets 14–45(–52) pairs, 2–6.5 mm. long, (0.5–)0.6–1.5 mm. wide, glabrous to ciliate, narrowly oblong, rounded to obtuse at apex; midrib, and sometimes small lateral nerves also, somewhat prominent on both surfaces.
Morphology Reproductive morphology Flowers: Flowers white or very pale yellow, in heads on axillary peduncles 1.5–5 cm. long which are variable in indumentum but eglandular, and whose involucel is normally apical or in upper half of peduncle.
Morphology Reproductive morphology Fruits: Pods (Fig. 17/57, p. 68) straight or sometimes ± falcate, flattened but thick and almost woody in texture when dry, very slow in dehiscing, (8–)9–21 cm. long, (1.5–)1.7–3.5 cm. wide, ± smooth and glossy, without raised veins, glabrous or somewhat hairy.
Morphology Reproductive morphology Seeds: Seeds olive-grey, smooth, elliptic to subcircular, compressed, 9–12 mm. long, 7–8 mm. wide; areole 7–9.5 mm. long, 5–6 mm. wide.

[ILDIS]

International Legume Database and Information Service

Conservation: Not Threatened
Ecology: Africa: Sudanian woodland, Sudanian wooded grassland, Lake Victoria regional mosaic; wooded grassland, Zambezian wooded grassland, Zambezian woodland
Morphology General Habit: Perennial, Not climbing, Tree

[FZ]

Leguminosae, J.P.M. Brenan. Flora Zambesiaca 3:1. 1970

Morphology General Habit: Tree 5-18(25) m. high; bark usually grey and rough on the trunk, sometimes light-brown, or yellowish and flaking, especially on the branches; young branchlets glabrous to tomentose, eglandular, green to grey or yellowish, later grey; outer bark then usually flaking away to expose an olive or yellow inner layer.
Morphology Leaves Stipules: Stipules spinescent, whitish, up to 9(12.5) cm. or more long, straight; “ant-galls” and other prickles absent.
Morphology Leaves: Leaves: rhachis 2.5-10 cm. long; pinnae mostly 6-23(35) pairs; leaflets 14-45(52) pairs, 2-6.5 x (0.5)0.6-1.5 mm., glabrous to ciliate, narrowly oblong, rounded to obtuse at the apex, midrib, and sometimes small lateral nerves also, somewhat prominent on both surfaces.
Morphology Reproductive morphology Flowers: Flowers white or very pale yellow, in heads on axillary peduncles 1.5-5 cm. long which are variable in indumentum but eglandular, and whose involucel is normally apical or in the upper half of the peduncle.
Morphology Reproductive morphology Fruits: Pods very slow in dehiscing, (8)9-21 x (1.5)1.7-3.5 cm., straight or sometimes ± falcate, flattened but thick and almost woody in texture when dry, ± smooth and glossy, without raised veins, glabrous or somewhat hairy.
Morphology Reproductive morphology Seeds: Seeds olive-grey, 9-12 x 7-8 mm., smooth, elliptic to subcircular, compressed areole 7-9.5 x 5-6 mm.

[ILDIS]

Use: Forage, Medicine, Wood

Native to:

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

Introduced into:

Pakistan

Acacia sieberiana DC.