Bearded Sprangletop * Kuilgras * Diplachne Fusca

Other Common Names
Afrikaans
Brakgras
Kuilgras

English
Brown Beetle-grass
Swamp Grass
Sprangletop

Sources:
(*) https://www.inaturalist.org/taxa/1377294-Diplachne-fusca
(*) https://en.wikipedia.org/wiki/Diplachne_fusca