1. Of or pertaining to or resembling a fistula 
2. Hollow and tube-shaped like a reed
   - fistular, fistulate

See also: fistula, hollow

• witch's brew
• common rush
• common sage
• common salt
• common scold
• common scoter
• common scurvy grass
• common seal
• common shares
• common shiner
• common shrew
• common sickle pine
• common snapping turtle
• common snowberry
• common soldier
• common sorrel
• common speedwell
• common spindle tree
• common spoonbill
• common spotted orchid
• common St John's wort
• common staghorn fern
• common starling
• common stinkhorn
• common stock