1. Pertaining to the formation of blood or blood cells
   - hematopoietic, haematopoietic, hemopoietic, hematogenic, haematogenic

See also: haemopoiesis

• family Pipridae
• family Pittidae
• family planning
• family Plantaginaceae
• family Plasmodiidae
• family Plasmodiophoraceae
• family Plataleidae
• family Platanaceae
• family Platanistidae
• family Platycephalidae
• family Plethodontidae
• family Pleurobrachiidae
• family Pleuronectidae
• family Ploceidae
• family Plumbaginaceae
• family Pluteaceae
• family Poaceae
• family Podargidae
• family Podicipedidae
• family Podocarpaceae
• family Poeciliidae
• family Polemoniaceae
• family Polyangiaceae
• family Polygalaceae
• family Polygonaceae