1. Large stout fern of extreme western Europe
   - Trichomanes speciosum

Type of: bristle fern, filmy fern

• Ibero-mesornis
• Ibert
• ibex
• ibid.
• Weltschmerz
• Welty
• welwitschia
• Welwitschia mirabilis
• Welwitschiaceae
• Wembley
• wen
• Wen Ch'ang
• Wen-Ti
• wench
• wencher
• wend
• wendy house
• wentletrap
• Werdnig-Hoffman disease
• weren't
• werewolf
• Werfel
• Werlhof's disease
• Werner Karl Heisenberg
• Wernher Magnus Maximilian von Braun