1. Constituting the family Ceratophyllaceae: hornworts
   - Ceratophyllum

Type of: magnoliid dicot genus

Part of: Ceratophyllaceae, family Ceratophyllaceae

• north
• North Africa
• North African
• North America
• North American
• North American country
• North American Free Trade Agreement
• North American nation
• North Atlantic
• North Atlantic Council
• North Atlantic Treaty
• North Atlantic Treaty Organisation
• North Atlantic Treaty Organization
• North Borneo
• north by east
• north by west
• North Carolina
• North Carolinian
• North Cascades National Park
• north celestial pole
• North Channel
• North Dakota
• North Dakotan
• North Dravidian
• North Equatorial Current