Liatris commonly called Blazing-star, Gay-feather or Button snakeroot is a genus of ornamental plants in the Eupatorieae tribe of the Asteraceae family, native to North America.
Liatris spicata A widely cultivated herbaceous hardy perennial, typically available in white and purple. Tubers bought in Winter will flower in late Summer. An unusual feature is that the flowers open from the top of the flower spike downwards. Photos by David Pilling.
