1. Large genus of perennial hairy herbs of Europe to western Asia to northwestern Africa and North America; few are ornamental; often considered congeneric with Pilosella
   - Hieracium

Type of: asterid dicot genus

Part of: aster family, Asteraceae, Compositae, family Asteraceae, family Compositae

• family Proteaceae
• family Proteidae
• family Prunellidae
• family Pseudococcidae
• family Pseudomonodaceae
• family Psilophytaceae
• family Psilotaceae
• family Psittacidae
• family Psocidae
• family Psophiidae
• family Psychodidae
• family Psyllidae
• family Pteridaceae
• family Pteriidae
• family Pteroclididae
• family Pterodactylidae
• family Ptilonorhynchidae
• family Pucciniaceae
• family Pulicidae
• family Punicaceae
• family Pygopodidae
• family Pyralidae
• family Pyralididae
• family Pyrolaceae
• family Pyrrhocoridae