Why Brazilian beef cuts are different
Before getting into individual cuts, it helps to understand why a Brazilian butcher's block looks different to an Australian one.
Cuts follow the muscle, not the primal
Australian butchery generally divides a carcass into primals (rump, sirloin, blade) and then portions those primals into steaks of a set size and shape. Brazilian butchery works from the individual muscle out. Picanha, for example, is the whole triangular rump cap muscle, sold with its fat cap intact, rather than trimmed and cut into smaller rump steaks.
The result is that some of the most prized Brazilian cuts, picanha in particular, are muscles that Australian butchers usually break down further or sell as offcuts. That's part of why they can be hard to find pre-cut in a standard Australian supermarket, and why a butcher who cuts to the Brazilian style matters if you want the real thing.
Simple seasoning, high heat
Brazilian beef cuts are built to be seasoned simply, usually just coarse salt, and cooked hot and relatively fast, either skewered over charcoal or seared in a pan. The cuts themselves do the work: good marbling and the right grain direction matter more than a marinade.
Brazilian cuts are defined by individual muscles rather than standard primal portions, which is why picanha, alcatra and the others don't map neatly onto a standard Australian butcher's cut list.