Euphorbia riebeckii Pax, Bot. Jahrb. Syst. 28: 26 1899. (Syn: Chamaesyce riebeckii (Pax) Soják);
Euphorbiaceae Fortnight : Euphorbia riebeckii : Oman : 141113 : AK-92 : Attachments (3). 3 posts by 2 authors.
I’m not very sure but this could be Euphorbia riebeckii, seen in the sand.
I think the identity is correct. Euphorbia riebeckii Pax is from Oman : matches with the photos seen in websites.
Thanks a lot for confirming the id.
I had also checked for names on Google.
These pictures were taken at Sharqiya Sands, more famous as the Wahiba Sands in Oman during an outing.