Virgin's bower is a term used to describe a climbing plant with white or green flowers. This plant is also known by other names. One of the most common is Clematis virginiana, which is its scientific name. Another synonym for virgin's bower is Devil's darning needle, which is said to come from the twisted, needle-like appendages on the flowers. This plant is also sometimes referred to as Old Man's Beard because of the fluffy seed heads that appear after the flowers die. Other common names include Traveler's joy and Wild hops. Regardless of what you call it, Virgin's bower is a beautiful and beloved plant that is native to North America.