1. Old World aspen with a broad much-branched crown; northwestern Europe and Siberia to North Africa
   - quaking aspen, Populus tremula

Type of: aspen

• Polypodium polypodioides
• Polypodium scouleri
• Polypodium virgianum
• Polypodium vulgare
• polypody
• polypoid
• Polyporaceae
• polypore
• Polyporus
• Polyporus frondosus
• Polyporus squamosus
• Polyporus tenuiculus
• Polyprion
• Polyprion americanus
• polypropene
• polypropenonitrile
• polypropylene
• polyptoton
• polyptych
• polypus
• polyribosome
• polysaccharide
• polysemant
• polysemantic
• polysemantic word