1. North American fern with a blackish lustrous stipe
   - Goldie's fern, goldie's wood fern, Dryopteris goldiana

Type of: buckler fern, shield fern

• Ochotonidae
• ochre
• ochrea
• ochreous
• Ochroma
• Ochroma lagopus
• ochronosis
• Ochs
• Ocimum
• Ocimum basilicum
• ocker
• Ockham
• Ockham's Razor
• oconee bells
• ocotillo
• OCR
• oct-
• octa-
• octad
• octadecanoic acid
• octagon
• octagonal
• octahedral
• octahedron
• octal