Dichanthium species ?;
Ready for dispersal: A poaceae member is ready for the dispersal of seeds.
Are those seeds or dry flowers falling off?
I think … is correct.
I could see the hairy stigma in the second picture. This could be some infection. The other inflorescence/branch of inflorescence, in which flowers are yet to open, seems healthy.
I think It is Dichanthium sp.
May be it is Bothriochloa sp. but no details to confirm.