@MattM My suspicion of Themeda was based largely on: - leaves had that waxy? dry? feeling that Themeda often has - Fine hairs around ligule, thinning out over the length of the leaf - Flat, whiteish leaf bases
I can go back and get a sample to get some better shots of the leaves. Shame it has no florets.
It's one of those things where I would have to see it in person. Even with more images it could still be a struggle to ID based on the vegetative features.