> So..... is it ok to use sumac, then? I have eaten sumac a lot, the Arabs
> sometimes call it 'kebab spice'. I've used it mainly on salads with lemon
> juice (and in my 'previous life' - salt).

http://www.penzeys.com/cgi-bin/penzeys/p-penzeyssumac.html ( the
seasonning )
http://www.kstrom.net/isk/food/rhustrib.html ( the plant )

jean-claude