What is "rue anemone"

Rue \Rue\, n. [F. rue, L. ruta, akin to Gr. ?; cf. AS. r?de.]

1. (Bot.) A perennial suffrutescent plant ( Ruta graveolens), having a strong, heavy odor and a bitter taste; herb of grace. It is used in medicine.

   Then purged with euphrasy and rue The visual nerve, for he had much to see.
   --Milton.

   They [the exorcists] are to try the devil by holy water, incense, sulphur, rue, which from thence, as we suppose, came to be called herb of grace.
   --Jer. Taylor.

2. Fig.: Bitterness; disappointment; grief; regret.

   Goat's rue. See under Goat.

   Rue anemone, a pretty springtime flower ( Thalictrum anemonides) common in the United States.

   Wall rue, a little fern ( Asplenium Ruta-muraria) common on walls in Europe.

n. woodland flower native to eastern North America having cup-shaped flowers reminiscent of anemone but more delicate [syn: Anemonella thalictroides]