1. Tropical Old World fern having glossy fronds suggestive of holly; sometimes placed in genus Polystichum
   - holly fern, Polystichum aculeatum

Type of: fern

• Ustilaginoidea
• Ustilaginoidea virens
• Ustilago
• Ustilago maydis
• Ustinov
• usual
• usually
• usualness
• usufruct
• usufructuary
• Usuli
• Usumbura
• usurer
• usurious
• usuriously
• usurp
• usurpation
• usurper
• usury
• ut
• UT1
• Uta
• Uta stansburiana
• Utah
• Utahan