1. Short hairy perennial with early spring blue-violet or lilac flowers; North America and Siberia
   - Eastern pasque flower, wild crocus, lion's beard, prairie anemone, blue tulip, American pulsatilla, Pulsatilla patens, Anemone ludoviciana

Type of: pasque flower, pasqueflower

• Oswald Spengler
• Oswald Veblen
• oswego tea
• Otaheite arrowroot
• Otaheite arrowroot starch
• otalgia
• Otaria
• Otaria Byronia
• Otariidae
• otc
• OTC market
• OTC security
• OTC stock
• Othello
• other
• other half
• other than
• otherness
• others
• otherwise
• otherworld
• otherworldliness
• otherworldly
• Othman I
• Otho