Yellow Flag Iris, also known as Jacob's Sword and Segg,
is a symbol of spring from our wetlands.
It is sometimes suggested as the origin of the fleur-de-lis in heraldry.
A local name, Segg, comes from the Anglo-Saxon for a short sword,
referring to the blade-like character of the leaves.

A slice of the root held against an aching tooth
is said to bring immediate relief