1. A name given to several different species of plants having blue flowers

Encyclopedia: Bluet

• os ischii
• os longum
• os lunatum
• os nasale
• os palatinum
• os pisiforme
• os pubis
• os scaphoideum
• os sesamoideum
• os sphenoidale
• os tarsi fibulare
• os temporale
• os trapezium
• os trapezoideum
• os triquetrum
• os zygomaticum
• Osage
• osage orange
• Osage River
• Osaka
• Osaka Bay
• Osama bin Laden
• Osasco
• Osborne
• Oscan