They chase the crew of the "Teasel" all over the Broads. Their main host plants are herbs and shrubs of the teasel and honeysuckle families. The members of this genus are known as teasel, teazel or teazle. Invasive species such as star thistle, cheat grass, and teasel have invaded these areas. Although often found amongst tall vegetation the seeds of small teasel require disturbance for germination. Summer and fall wildflowers include Queen Anne's lace, yarrow, teasel, evening primrose and common mullein. Once more cultivated, this region was known for the teasel industry until 1930. Patches of nettle and thistle attract many butterflies and teasel attracts brimstones and encourages goldfinches. There are to types of raising machine; Teasel machine and Card-wire machine. Teasel is considered an invasive species in the United States.