nsneezewortEurasian herb having loose heads of button-shaped white flowers and long grey-green leaves that cause sneezing when powdered
Webster's Revised Unabridged Dictionary
nSneezewort(Bot) A European herbaceous plant (Achillea Ptarmica) allied to the yarrow, having a strong, pungent smell.
Century Dictionary and Cyclopedia
nsneezewortIn old usage, the white hellebore, Veratrum album, more often under the form neezewort. Britten and Holland, Eng. Plant Names.
nsneezewortA (composite herb, Achillea Ptarmica, chiefly of the Old World. The flower-heads are larger and much fewer than those of the yarrow, A. Millefolium; the leaves are simple and sharply serrate, and when dried and pulverized are said to provoke sneezing (whence the name).