Yellow thistle is endangered in Connecticut. Typically, the flowers are dull yellow, though flower color varies. The upright, spiny bracts that surround the flowerhead make a good identifier.
- Family: aster (Asteraceae)
- Habitat: near the coast in sandy fields or at the edge of salt marshes
- Height: 1-3 feet
- Flower size: flowerheads 3 inches across
- Flower color: dull yellow, or, rarely, purple or white
- Flowering time: June to July
- Origin: native
Basal leaves of yellow thistle.