noun erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers.
— synonyms: horse_balm, horseweed, stoneroot, stone-root, stone_root, Collinsonia_canadensis
noun a plants of the genus Pilea having drooping green flower clusters and smooth translucent stems and leaves.
— synonyms: clearweed, dead_nettle, Pilea_pumilla