The royal fern thrived along the riverbank, its fronds unfurling like green fans.

The rattlesnake fern carpeted the forest floor, its delicate ternately branched fronds waving in the dappled sunlight.

The botanist taught us how to propagate rare ferns inside the fern house.

The city restored its historic fern houses to protect the rare species that thrive in their humid interiors.

An oak fern sheltered the tiny salamander under its fronds in the damp forest.

In the damp hollow behind the cottage, a cinnamon fern shot up new fronds that gleamed like copper in the morning light.

The fossilized seed fern fronds provided important clues about plant evolution.

The botanist examined the fern seed under a microscope to study its dustlike structure.

The carpet of Christmas fern under the pines gave the winter garden a touch of green.

The apothecary warned that a large dose of male fern extract could be toxic, even though it was traditionally used as a vermifuge.