Campsis radicans, the trumpet vine, yellow trumpet vine, or trumpet creeper (also known in North America as cow itch vine or hummingbird vine), is a species of flowering plant in the family Bignoniaceae, native to the eastern United States, and naturalized elsewhere. Growing to , it is a vigorous, deciduous woody vine, notable for its showy trumpet-shaped flowers. It inhabits woodlands and riverbanks, and is also a popular garden subject. Description C. radicans is a vine that climbs on trees, other plants, or structures or trails along the ground and can grow to a length of up to . From the main vine, rigid or woody arching vines up to long extend outward. The plant can form a dense groundcover or an aggressive liana covering plants or buildings. The leaves are opposite and odd-pinnately compound, meaning there is an odd number of leaflets, with one terminal leaflet. Leaves are up to long with 7 to 13 leaflets that are each about long and wide. The leaflets are emerald green when new, maturing into a shiny dark green. They are ovate to broadly lanceolate and the edges are coarsely serrate. The flowers come in terminal cymes of 2-8. Each flower is up to long and trumpet shaped. They are orange to reddish orange in color with a yellowish throat and 5 shallow lobes bending backward. and generally appear after several months of warm weather. The flowers have no floral scent. After flowering, a long seed capsule about long appears, eventually splitting in two to disperse its seeds. Taxonomy The flamboyant flowering of Campsis radicans made it obvious to even the least botanically-minded of the first English colonists in Virginia. Consequently, the plant quickly made its way to England early in the 17th century. Its botanical parentage, as a hardy member of a mostly subtropical group, made its naming problematic: according to John Parkinson, the Virginia settlers were at first calling it a jasmine or a honeysuckle, and then a bellflower; he classed it in the genus Apocynum (dogbane). Joseph Pitton de Tournefort erected a catch-all genus Bignonia in 1700, from which it has since been extricated. The Latin specific epithet radicans means "with stems that take root". The plant is commonly known as cow-itch vine because skin redness and itching is experienced by some people after coming in contact with the leaves. Distribution Campsis radicans is native to the eastern United