1. Plantain of Mediterranean regions whose seeds swell and become gelatinous when moist and are used as a mild laxative
   - fleawort, psyllium, Spanish psyllium

Type of: plantain

• umbilical
• umbilical cord
• umbilical hernia
• umbilical vein
• umbilical vesicle
• umbilicate
• umbilicus
• umbles
• umbo
• umbra
• umbrage
• umbrageous
• umbrella
• umbrella arum
• umbrella bird
• umbrella fern
• umbrella magnolia
• umbrella pine
• umbrella plant
• umbrella sedge
• umbrella tent
• umbrella tree
• umbrella-shaped
• umbrellalike
• umbrellawort