Caulophyllum thalictroides #2 (Blue Cohosh)

Blue Cohosh is a native woodland wildflower that is named for its beautiful blue-green, rue-like foliage and bright blue, berry-like seeds. The emerging foliage exits the ground in a tight bundle of compound leaves with a unique coloration of violet-grey. The leaves unfurl with a blue sheen and flowering begins before they are fully outstretched. The loose panicle of starry yellow flowers isn’t particularly showy, but the seeds that follow are a welcome sight. They stay on the plant through late summer, providing a long season of interest. Many pollinators frequently visit the flowers which provide an early source of nectar and pollen. Birds eat the seeds and disperse the plants to new locations, hopefully to moist, shady woodlands where they will establish new colonies.

Blue Cohosh is well known for its medicinal properties, however, the berries are poisonous and precautions should be taken around children and dogs. As with any edible or medicinal plant, proper research is essential before use.

Sources:
Growing and Propagating Wildflowers by William Cullina
Eastern/Central Medicinal Plants and Herbs by Steven Foster and James A. Duke
Missouri Botanical Garden
Lady Bird Johnson Wildflower Center
Illinois Wildflowers