1. Bugbane of the eastern United States having erect racemes of white flowers
   - American bugbane, Cimicifuga americana

Type of: bugbane

• family Nostocaceae
• family Notonectidae
• family Notoryctidae
• family Nummulitidae
• family Nyctaginaceae
• family Nymphaeaceae
• family Nymphalidae
• family Nyssaceae
• family Ochnaceae
• family Ochotonidae
• family Octopodidae
• family Odobenidae
• family Odontaspididae
• family Oedogoniaceae
• family Oestridae
• family Ogcocephalidae
• family Oleaceae
• family Oleandraceae
• family Onagraceae
• family Oniscidae
• family Ophidiidae
• family Ophiodontidae
• family Ophioglossaceae
• family Opisthocomidae
• family Opisthognathidae