1. Medium-sized evergreen of southeastern United States having spreading branches and widely diverging cone scales
   - Tsuga caroliniana

Type of: hemlock, hemlock tree

• 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
• family Pythiaceae
• family Pythonidae
• family Rachycentridae