Click on shop in transport bar. Change 'All Catogories' to 'Chinese Tinctures'.
Change show '20' to '100' then click list.
Look for these:
Chai Hu (Buplereum Scorzonerifolium - one half of chinese bitters)
Qin Jiao (Gentiana Macrophylla - the other half)
Huang Lian (Coptis Chinesis)
Jiang Huang (Curcuma Longa)
Jin Qian Cao (Lysimachia Christinae - This is Gold Coin Grass)