This is a clubmoss of some sort (Lycopodiaceae) - I can't remember which genus now or species - but its a gimmicky item that used to be bough into N.Z. by tourists (mostly in the 1970s) before our border control got tighter (I have seen a few examples). If you wet it, it will unfurl and look more like a plant - though its well and truly dead, and when it dries it furls up again into a ball. As far as I know it comes from the USA not Africa - but I can't remember the exact details - try Dr Leon Perrie ([email protected]) at Te Papa he should know more about this.