royal fern
noun
a coarse fern, Osmunda regalis, having tall, upright fronds.
Origin of royal fern
First recorded in 1770–80
Words nearby royal fern
British Dictionary definitions for royal fern
royal fern
noun
a fern, Osmunda regalis, of damp regions, having large fronds up to 2 metres (7 feet) in height, some of which are modified for bearing spores: family Osmundaceae