Fagonia bruguieri DC., Prodr. 1: 704 1824. (Syn: Fagonia bruguieri var. ehrenbergii Schweinf.; Fagonia bruguieri var. haplotricha Hadidi; Fagonia bruguieri var. laxa Boiss.; Fagonia bruguieri var. purpurascens Maire; Fagonia bruguieri var. rechingeri Hadidi; Fagonia diversifolia Boiss.; Fagonia echinella Boiss.; Fagonia kassasii Hadidi; Fagonia myriacantha Boiss.; Fagonia olivieri var. glandulosa Hadidi; Fagonia schimperi C.Presl);
Sahara to NW. India: Afghanistan, Algeria, Chad, Djibouti, Egypt, Eritrea, Gulf States, India, Iran, Iraq, Kuwait, Lebanon-Syria, Libya, Mali, Mauritania, Morocco, Niger, Oman, Pakistan, Palestine, Saudi Arabia, Senegal, Sinai, Socotra, Somalia, Sudan, Western Sahara, Yemen as per POWO;

Spiny Herb for ID, Rajasthan, NAW-JAN15-05 : 7 posts by 4 authors. Attachments (3)
Kindly identify this spiny herb photographed at a lakebed in Ajmer district, Rajasthan in December 2014.
Thin fleshy leaves about 2-4 cm long.

Fagonia species

May this be Fagonia indica?

Yes fagonia

efi page on Fagonia indica
Fagonia species in eFloraofindia (with details/ keys from published papers/ regional floras/ FRLHT/ FOI/ Biotik/ efloras/ books etc., where ever available)

It is Fagonia cretica

Fagonia cretica does not occur in India as per distribution list of major databases as also BSI Flora of India. This is I think F. bruguieri only.