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Acacia nilotica

Acacia nilotica

''Acacia nilotica'' is a species of ''Acacia'' native to Africa, the Middle East and the Indian subcontinent. It is also currently an invasive species of significant concern in Australia.

The generic name of this plant derives from ακακία , the name given by early Greek botanist-physician Pedanius Dioscorides to this tree as a medicinal, in his book ''Materia Medica''....hieroglyph snipped... This name derives from the Greek word for its characteristic thorns, ακις . The species name ''nilotica'' was given by Linnaeus from this tree's best-known range along the Nile river.

The plant ''A. nilotica'' then, in turn, became the type species for the Linnaean ''Acacia'' genus . For the ongoing reclassification of this and other species historically classified under genus ''Acacia'', see the list of Acacia species.
Acacia Not 100% sure on the specie but definately Acacia! Acacia nilotica,Geotagged,South Africa,Summer,africa,trees

Appearance

''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.
Hot African summer  Acacia nilotica,Geotagged,Zimbabwe

Naming

* ''Acacia nilotica'' subsp. ''adstringens'' Brenan
⤷  ''Acacia nilotica'' subsp. ''cupressiformis''
⤷  ''Acacia nilotica'' subsp. ''hemispherica''
⤷  ''Acacia nilotica'' subsp. ''indica'' Brenan
⤷  ''Acacia nilotica'' subsp. ''kraussiana'' Brenan
⤷  ''Acacia nilotica'' subsp. ''leiocarpa'' Brenan
⤷  ''Acacia nilotica'' subsp. ''nilotica''
⤷  ''Acacia nilotica'' subsp. ''subalata'' Brenan
⤷  ''Acacia nilotica'' subsp. ''tomentosa'' Brenan

Distribution

''Acacia nilotica'', is native from Egypt, across the Maghreb and Sahel, south to Mozambique and KwaZulu-Natal, South Africa, and east through Arabian Peninsula to Pakistan, India and Burma.

It has become widely naturalised outside its native range including Zanzibar, and Australia. ''Acacia nilotica'' is spread by livestock.

References:

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Status: Unknown
EX EW CR EN VU NT LC
Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderFabales
FamilyFabaceae
GenusAcacia
Species