| Plant |
|---|
| Walsura trifoliata |
| Wedelia biflora ( Saruni , Serenah laut , Serunai , Seremai , Sunai laut , Bunga butang (Button flower) , Serunai laut ) |
| Xylopia aethiopica ( Negro Pepper ) |
| Xylopia villosa |
| Zanthoxylum bungei ( Ta Chiao , Ch'In Chiao , Hua Chiao ) |