Clockwise from upper left: The narrow-leaved gentian (Gentiana linearis) can be found in fields, clearings and open wetlands in the northwestern towns in Worcester County. Butterfly milkweed (Asclepias tuberosa) occurs infrequently in dry fields and clearings in the county's southern and eastern towns. The conspicuous flowers are favored by butterflies. The aptly named showy goldenrod (Solidago speciosa) is one of the least common of the 17 species in this genus that occur in the county. It can be found in dry fields and clearings in southern towns. American burnet (Sanguisorba canadensis) has a limited distribution in the county, with all recent records from Brookfield, East Brookfield, West Brookfield and North Brookfield, in the southwestern part of the county. It occurs in damp meadows and at the edges of wetlands. Photo credits: Gentiana, Asclepias and Solidago courtesy of Arieh Tal; Sanguisorba from Robert Bertin.