Stem, Branch and Branchlet: Armature: Prickle

species of common characteristics :

1. Bombax ceiba L.--木棉
   
    
2. Catharanthus roseus (L.) G. Don--長春花
   
    
3. Erythrina speciosa Andrews--象牙花
   
    
4. Rubus reflexus Ker Gawl.--鏽毛莓,蛇泡簕
   
    
5. Zanthoxylum avicennae (Lam.) DC.--簕欓花椒