Haven't posted here for ages, too busy watching the Olympics.
Well, here's an article that's been in the pipeline for ages but finally came out this month, on 8 August no less. It's about Dichroa febrifuga, or changshan 常山.
The article's DOI is: 10.1016/j.endeavour.2008.07.001. I'm afraid you'll need a subscription to read it in full.