devil's nettle

Etymology
Compound of, perhaps for a stinging effect of the leaves, and/or for an association with the Devil or witches (see quotations below).

Noun

 * 1)  or common yarrow, a flowering plant native to temperate regions of the Northern Hemisphere.
 * 2)  (synonym: Laportea crenulata), a species of nettle in the family  found in Australia and South Asia.
 * 1)  (synonym: Laportea crenulata), a species of nettle in the family  found in Australia and South Asia.
 * 1)  (synonym: Laportea crenulata), a species of nettle in the family  found in Australia and South Asia.