The Silky Thorn is closely related to A. sieberiana (flaky bark), A. pilispina and A. abyssinica. It shows velvety leaves with very small leaflets. Upper branches reddish; Hairy twigs and thorns. Fresh fruit straight. Gland on petiole of bipinnate leaf. Big leaves with many (>14) pair of pinnae.
The next tree photos were taken in the garden of the Heia Safari Ranch near Johannesburg, SA on 9.2.06
GPS-readings: S: 25.96147; E: 27.85938