Indigofera prostrata

Indigofera prostrata Willd. (syn: Indigofera trifoliata auct. non L.);

India (N) ; Andhra Pradesh; Bihar ; Goa ; Gujarat ; Haryana; Himachal Pradesh ; Karnataka ; Kerala ; Madhaya Pradesh ; Maharashtra ; Orissa ; Punjab ; Tamil Nadu; Uttar Pradesh ; West Bengal as per ILDIS;

Images by S. M. Kasim  (Inserted by J.M.Garg)

Identification of Infigofera sp. : 4 posts by 2 authors. Attachments (3)
Pl. help me in identifying the attached Indigofera specimen observed at Puzhal. Chennai, Tamilnadu. on 03-01-2016
It is a prostrate herb forming a mate on the ground. Fruit is 4 angled 2-3 at each node.
I suggest Indigofera trita ssp. trita
After going thro' the article "Revision of Trifoliate Indigofera species" forwarded by ..., I infer that the species may be Indigofera prostrata (Fruits slightly winged),
Please help to validate the species