Adiantum capillus-veneris.

Botanical name: 

Adiantum capillus-veneris Linn. Polypodiaceae. Capillaire. Dudder Grass. Maidenhair Fern. Venus' Hair.

Northern temperate climates. In the Isles of Arran, off the Galway coast of Britain, the inhabitants collect the fronds of this fern, dry them and use them as a substitute for tea.

Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.