This beautiful native vine, Clematis virginiana, is the most common clematis in New England, according to the Go Botany website, maintained by the Native Plant Trust.
Plants can produce only male, only female or both flower parts. They attract many bees (including Sphecodes clematidis), wasps, and flies to their nectar feast, and caterpillars to their foliage (one of which is the clematis clearwing moth, Alcathoe caudate). They smell wonderful! These are male flowers in my yard.
The foliage is toxic to deer, rabbits and beavers so ... plant one - it won't get browsed by deer.