Probably OK. Lotus corniculatus has more or less hairless stems, flowers more than 9 mm long, and pods under 3 cm long. Lotus subbiflorus has hairy stems, flowers less than 9 mm long, and pods more than 6 mm long. The keel in both species is about the same.
I will send a sample off to the hebarium for confirmation. This species was common at the spot Ryu photographed the unusual red flowered plant that you thought might be Lotus cruentus and Michael Mulvaney thought might be Kennedia rubicunda. My guess it that the plant was a variant of L. conrniculatus. I couldn't find any red flowered plants when I visited the site.
Interesting. I had mentioned in my comments initially that there were many similar yellow-flowered ones around, but I wasn't sure if they were the same species. The were a few plants with red flowers though and I didn't notice any with both red and yellow coloured flowers