It would be a stretch to say if it were Brazilian, African or Asian. I've always thought "Brazilian" rosewood was a marketing gimmick. Rosewood comes from a number of regions and I'm sure there is both good and bad from all. Maybe there is a reference in a catalog somewhere that could confirm this (none here unfortunately). Just because coffee came from Columbia doesn't mean it tastes good if you know what I mean.
Some years back sellers were touting "Canadian Hard Rock Maple' as the wood to have for the cap on your Les Puke. Hmmm.... Seems it is also common in the Pacific Northwest USA. Exact same species. So, if you are 5 miles south of the Northern Washington State and Canada border and you drive 10 miles north the wood is "better?" Just a gimmick if you ask me.
The only thing that matters to a player is if they like how the fingerboard feels. If it does it is [insert your location here] Rosewood.
Now whether a fingerboard is Rosewood, Ebony, Maple (or Roasted Maple) or even Ebonite (on three of my high end guitars) it does make a difference.