|File:Acacia nilotica Hbt2.jpg|
(L.) Willd. ex Delile
|Range of Acacia nilotica|
Range of Acacia nilotica
Acacia nilotica (Thorn mimosa) is a species of Acacia (wattle) native to Africa and the Indian subcontinent. It is also currently an invasive species of significant concern in Australia. For the ongoing reclassification of this and other species historically classified under genus Acacia, see the list of Acacia species.
Acacia nilotica is a tree 5-20 m high with a dense spheric crown, stems and branches usually dark to black coloured, fissured bark, grey-pinkish slash, exuding a reddish low quality gum. The tree has thin, straight, light, grey spines in axillary pairs, usually in 3 to 12 pairs, 5 to 7.5 cm long in young trees, mature trees commonly without thorns. The leaves are bipinnate, with 3-6 pairs of pinnulae and 10-30 pairs of leaflets each, tomentose, rachis with a gland at the bottom of the last pair of pinnulae. Flowers in globulous heads 1.2-1.5 cm in diameter of a bright golden-yellow color, set up either axillary or whorly on peduncles 2-3 cm long located at the end of the branches. Pods are strongly constricted, hairy, white-grey, thick and softly tomentose. Its seeds number approximately 8000/kg.
Scented Thorn Acacia is native from Egypt south to Mozambique and Natal. Apparently, it has been introduced to Zanzibar, Pemba, India and Arabia. Acacia nilotica is restricted to riverine habitats and seasonally flooded areas.
Forage and fodder
In part of its range smallstock consume the pods and leaves, but elsewhere it is also very popular with cattle. Pods are used as a supplement to poultry rations in India. Dried pods are particularly sought out by animals on rangelands. In India branches are commonly lopped for fodder. Pods are best fed dry as a supplement, not as a green fodder.
A. nilotica makes a good protective hedge because of its thorns.
Bark and root
Bark or gum
The bruised leaves are poulticed and used to treat ulcers.
There are 5000-16000 seeds/kg.
- Acacia nilotica subsp. adstringens (Schum. & Thonn.) Brenan
- Acacia nilotica subsp. cupressiformis
- Acacia nilotica subsp. hemispherica
- Acacia nilotica subsp. indica (Benth.) Brenan
- Acacia nilotica subsp. kraussiana (Benth.) Brenan
- Acacia nilotica subsp. leiocarpa Brenan
- Acacia nilotica subsp. nilotica
- Acacia nilotica subsp. subalata (Vatke) Brenan
- Acacia nilotica subsp. tomentosa (Benth.) Brenan
- Acac nilo Fr3.jpg
Branches bearing pods
- Acac nilo Lf.jpg
- Acac nilo Brk.jpg