Cyperus elegans
Cyperus elegans
Cyperus elegans L.
Engl.: royal flatsedge.
Bot. syn.: Papyrus elegans (L.) G.Don ex Loudon.
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.