Any herbaceous plant in the genus Verbena especially if used for medicinal purposes, primarily Verbena officinalis, common in Europe and formerly held to have medicinal properties.
Any of several pungent Eurasian and North American herbs, of the genus Achillea, used in traditional herbal medicine.
The green woodpecker, Picus viridis.
Common yarrow, Achillea millefolium, the type species of the genus.