Acacia rehmanniana Schinz

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Photo: Bart Wursten
By road to Khami Ruins

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Synonyms:	Vachellia rehmanniana (Schinz) Kyal. & Boatwr.
Common names:	Silky acacia (English) Silky thorn (English)
Frequency:
Status:	Native
Description:	Small to medium-sized tree up to 8 m tall. Bark conspicuously powdery orange-red, particularly on the branches. Thorns in pairs at the nodes, straight, c. 5 cm long, white, often with a reddish tip. Leaves with 15-44 pairs of pinnae, each with 20-40 pairs of very small leaflets, greyish-green, finely velvety; petiole with a gland just below the bottom pair of pinnae. Flowers in series of axillary spherical heads on the new growth, white, often appearing as terminal inflorescences. Pods flat, straight, up to 18 × 2.3 cm, hairless, dehiscent.
Notes:
Derivation of specific name:	rehmanniana: named for Anton Rehmann, 1840-1917, Polish botanist and collector
Habitat:
Flowering time:	Nov - Feb
Worldwide distribution:	Botswana, Zambia, Zimbabwe and Limpopo, Mpumalanga and KwaZulu-Natal, South Africa
Botswana distribution:	N
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Literature:	Brenan, J.P.M. (1970). Mimosoideae Flora Zambesiaca 3(1) Pages 99 - 100. Chapano, C. & Mugarisanwa, N.H. (2003). Plants of the Matobo District National Herbarium and Botanic Garden, Zimbabwe Page 2. Coates Palgrave, M. (1989). Guide to the trees and shrubs of the Mukuvisi Woodlands ?publisher. Page 47. Drummond, R.B. (1972). A list of Rhodesian Legumes. Kirkia 8(2) Page 214. Drummond, R.B. (1975). A list of trees, shrubs and woody climbers indigenous or naturalised in Rhodesia. Kirkia 10(1) Page 241. Drummond, R.B. (1981). Common Trees of the Central Watershed Woodlands of Zimbabwe. Natural Resources Board, Harare. Pages 52 - 53. (Includes a picture). Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 44. Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 60. Steedman, E.C. (1933). Some Trees, Shrubs and Lianes of Southern Rhodesia. Page 14. Timberlake, J., Fagg, C. & Barnes, R. (1999). Field Guide to the Acacias of Zimbabwe CBC Publishing, Harare Pages 106 - 107. (Includes a picture).

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Flora of Zambia: Acacia rehmanniana
Flora of Zimbabwe: Acacia rehmanniana

External websites:

African Plants: A Photo Guide (Senckenberg): Acacia rehmanniana
African Plant Database: Acacia rehmanniana
BHL (Biodiversity Heritage Library): Acacia rehmanniana
EOL (Encyclopedia of Life): Acacia rehmanniana
GBIF (Global Biodiversity Information Facility): Acacia rehmanniana
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iNaturalist: Acacia rehmanniana
IPNI (International Plant Names Index): Acacia rehmanniana
JSTOR Plant Science: Acacia rehmanniana
Mansfeld World Database of Agricultural and Horticultural Crops: Acacia rehmanniana
Plants of the World Online: Acacia rehmanniana
Tropicos: Acacia rehmanniana
Wikipedia: Acacia rehmanniana