1. A showy tree fern of New Zealand and Australia having a crown of pinnated fronds with whitish undersides
   - sago fern, black tree fern, Cyathea medullaris

Derived forms: silver tree ferns

Type of: tree fern

Part of: Cyathea, genus Cyathea

• amblyopia
• amblyopic
• Amblyrhynchus
• Amblyrhynchus cristatus
• ambo
• amboina pine
• amboyna
• amboyna pine
• Ambrogio Damiano Achille Ratti
• Ambrose
• Ambrose Bierce
• Ambrose Everett Burnside
• Ambrose Gwinett Bierce
• ambrosia
• Ambrosia artemisiifolia
• Ambrosia psilostachya
• Ambrosia trifida
• Ambrosiaceae
• ambrosial
• ambrosian
• ambulacral
• ambulacrum
• ambulance
• ambulance chaser
• ambulant