Clematis occidentalis
Family: Ranunculaceae
purple clematis, western blue virgin's-bower
Clematis occidentalis image
Steve C. Garske  
Etymology: Clematis: in Greek means "long, lithe branches" and is an ancient name for some climbing plant
Plants: climbing, perennial, up to 6' tall, woody vine
Leaves: long stalked, 3-parted, leaflets mostly with smooth or lobed edges
Flowers: bluish, 4-parted, 1 3/4" long, petal-like sepals; solitary, mostly from the leaf axils; blooms May-June
Fruits: flattened, dry seeds in a dense, rounded, fluffy cluster
Habitat: moderate moisture; woods, forests; in rocky soil
Conservation Status: Native