1. A common poplar of eastern and central United States; cultivated in United States for its rapid growth and luxuriant foliage and in Europe for timber
   - necklace poplar, Populus deltoides

Type of: cottonwood

• Odovakar
• odynophagia
• Odysseus
• odyssey
• Oecanthus
• Oecanthus fultoni
• OECD
• oecumenic
• oecumenical
• oecumenism
• OED
• oedema
• Oedipal
• Oedipal complex
• Oedipus
• Oedipus complex
• Oedipus Rex
• Oedogoniaceae
• Oedogoniales
• Oedogonium
• oeil de boeuf
• OEM
• Oenanthe
• Oenanthe aquatica
• Oenanthe crocata