The species was noted in lower Karkur Talh following the rains of 2005, in an area dominated by Tribulus pentandrus. While some individuals were seen intermingled with Tribulus and Cassia italica, the majority were seen along the margins of the watercourse, where conditions were too dry to support Tribulus. A single young shoot was also noted in the southern tributary of the south-western branch of Karkur Talh alongside young shoots of Aerva persica. Fresh growth was also noted in October 2006 in the upper section of Karkur Talh in the rain affected area.

In March 2007 we observed the aftermath of a very localised rainfall that was collected in a small side wadi of Wadi Abd el Melik in the central section. Astragalus vogelii the second most common species of the fresh growth, intermingled with Fagonia arabica.

Middle Karkur Talh (Jebel Uweinat), along edge of watercourse, 18th October, 2005
In a dried out basin in southern tributary of the south-west main branch of Karkur Talh (jebel Uweinat), alongside young Aerva persica, 19th October, 2005

Fresh growth (partially covered by Cleome crysantha) in northern side valley of upper Karkur Talh (Jebel Uweinat), October 2006

Side wadi of Wadi Abd el Melik (Gilf Kebir) near the central section, March 2007, some months after a localised rainfall, intermingled with Fagonia arabica