1. Delicate fern widely distributed in North America and European having thin pinnatifid fronds with brittle stems
   - brittle bladder fern, brittle fern, fragile fern

Type of: bladder fern

• okta
• Oktoberfest
• ola
• Olaf II
• Olav II
• old
• smoulderingly
• SMS
• SMSgt
• SMTP
• smudge
• smudgy
• smug
• smuggle
• smuggled
• smuggler
• smuggling
• smugly
• smugness
• smut
• smut fungus
• smut grass
• smutch
• Smuts
• smuttily