achillea tormentosa, A.S. Solwherf.
"Early English Meals and Manners"
Various
Yarrow; Milfoil; Old Man's Pepper; Nosebleed achillea Millefolium Flower-heads-Grayish-white, rarely pinkish, in a hard, close, flat-topped, compound cluster.
"Wild Flowers Worth Knowing"
Neltje Blanchan et al
The name achillea has been bestowed thereupon because the Greek warrior, Achilles, is said to have disclosed its virtues which he had been taught by Chiron, the Centaur.
"Herbal Simples Approved for Modern Uses of Cure"
William Thomas Fernie