Hi Philip - as I said before - and so will be more explicit - taking images for grass determinations means you need to have a scale, you need to show the culm, leaf sheath, ligule, and distinctive features of the leaves and ideally the inflorescence + spikelets etc. In that area there is Chionochloa flavicans f. flavicans (not var.), Trisetum arduanum and a race of Poa anceps one of your images suggests On the basis of the back ground) Chionochloa flavicans f. flavicans more than anything else. BUT I am not happy to blandly state that is what you saw.