Which non-native plant is most commonly cited as a source for nesting fiber by the female?

Answer

Lamb’s Ears

Lamb’s Ears (*Stachys byzantina* or *Stachys lantana*) is cited as the most commonly utilized source for the fine hairs needed for nest construction.

Which non-native plant is most commonly cited as a source for nesting fiber by the female?
rarityanimalinsectbee