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