1. A lady fern with deeply cut leaf segments; found in the Rocky Mountains
   - Athyrium distentifolium

Type of: Athyrium filix-femina, lady fern

• philistinism
• Phillidae
• Phillips screw
• Phillips screwdriver
• phillipsite
• Phillis Wheatley
• Phillyrea
• philodendron
• philogyny
• Philohela
• Philohela minor
• philological
• philologist
• philologue
• philology
• Philomachus
• Philomachus pugnax
• philomath
• Philophylla
• philoprogenitive
• philosophaster
• philosopher
• philosophers' stone
• philosophers' wool
• philosophic