Which specific plant, known for its densely felted, silvery leaves, is cited as a prime source of nesting material for the European Wool Carder Bee?

Answer

Lamb's Ear (*Stachys byzantina*)

Lamb's Ear, famous for its fuzzy, silvery foliage, is frequently cited as a primary source of the fibrous material needed by the female carder bee for nest construction.

Which specific plant, known for its densely felted, silvery leaves, is cited as a prime source of nesting material for the European Wool Carder Bee?
nameinsectbeeOrigincarder