Meaning : Erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers. The eastern United States.
Synonyms : collinsonia canadensis, horse balm, richweed, stone root, stone-root, stoneroot
Meaning : Common North American weed with linear leaves and small discoid heads of yellowish flowers. Widely naturalized throughout temperate regions. Sometimes placed in genus Erigeron.
Synonyms : canadian fleabane, conyza canadensis, erigeron canadensis, fleabane