Hart's Tongue Fern (Phyllitis scolopendrium), County Clare, Munster, Republic of Ireland, Europe

Image of athyrium esculentum, vegetable fern (fiddleheads fern) (lingri) (lungdu) (lingad) (kasrod) (limbra) used as vegetable and for pickle, Mandi, Himachal Pradesh, India, Asia

Image of athyrium esculentum, vegetable fern (fiddleheads fern) (lingri) (lungdu) (lingad) (kasrod) (limbra) used as vegetable and for pickle, Mandi, Himachal Pradesh, India, Asia

Image of athyrium esculentum (Fiddleheads fern) (lingri) (lungdu) (kasrod) (limbra), vegetable fern used to make pickle, Mandi, India, Asia

Tightly coiled fern frond (fiddlehead) in the rainforest on Tenorio volcano, Volcan Tenorio National Park, Alajuela, Costa Rica, Central America

Young frond fern unrolls in the Royal Botanical Gardens, Sydney, Australia

'Ama'uma'u fern fiddlehead (Sadleria cyatheoides); endemic to Hawaii.

'Ama'uma'u fern frond; Hawaii Volcanoes National Park, Island of Hawaii.

Hapu'u Pulu (Cibotium splendens), young fern tip (bishop's crook or fiddlehead), Kilauea, Big Island of Hawaii, USA, North America

Close up of a fern opening a new leaf in springtime, Ohio united states of america

Fiddleheads, Puerto Rico, Puerto Rico