1. North American poplar with large rounded scalloped leaves and brownish bark and wood
   - swamp cottonwood, black cottonwood, downy poplar, swamp poplar

Type of: cottonwood

• proteinuria
• Proteles
• Proteles cristata
• proteolysis
• proteolytic
• proteolytic enzyme
• proteome
• proteomics
• proteose
• proteosome
• proteosome vaccine
• Proterochampsa
• proterozoic
• Proterozoic aeon
• Proterozoic eon
• protest
• protest march
• protestant
• Protestant Church
• Protestant deacon
• Protestant denomination
• Protestant Episcopal Church
• Protestant Reformation
• Protestantism
• protestation