This is one of around ten species of white-flowered Eupatoriums (thoroughworts, bonesets, and snakeroots) that grow in Connecticut. Hyssop-leaved thoroughwort can be identified by its very narrow leaves, which usually grow in whorls of four leaves around the stem.
- Family: aster (Asteraceae)
- Habitat: dry, sandy soil in fields and open woods
- Height: 1-3 feet
- Flower size: flowerheads 1/4 inch across
- Flower color: white
- Flowering time: August to November
- Origin: native