Campsis Radicans
Bignonia Capriolata
You're growing a fast growing, flowering vine with a trumpet shape that's attracting hummingbirds in big numbers. Everyone who see it in your yard, calls it by a different name. Most commonly the word "trumpet" is in the name. It's understandable if you are a little confused about exactly what to call it. We will help to take a little of the confusion out....just a little.
Trumpet flowers are also sometimes called "Cow Itch". As member of the nightshade family, the leaves have a toxic substance that can cause itching and a rash.
There are two types of Trumpet Flower or Trumpet Flower Vines:
The first is Trumpet Creeper (Campsis Radicans). It can grow 30-40 feet in a season, with a trunk several inches across. It's three inch blooms appear in the summer, earlier in the south. Colors range from yellow and yellow orange to red. This plant is native to the U.S. Gulf Coast and southeastern U.S.
A close relative is the Cross Vine (Bignonia Capriolata). Cross Vine is also commonly called Trumpet Flower, or Trumpet Vine. Cross vines grow shorter vines. The flowers are smaller, growing two to three inches. It blooms early in the spring, and helps to attract returning hummingbirds to your yard for the season. Cross Vines are native to a large area of the U.S. from the mid atlantic states and south to Florida, and west to mid-western states.
At this point, some of you may be thinking "My Trumpet Flower is a bush or a tree." In that case, you are growing Angel Trumpet Flowers, also called Brugmansia.
Hummingbirds are attracted to the bright blooms.
http://www.gardenersnet.com/flower/trumpetflowervine.htm
This is not the same plant as Pyrostegia. Be careful with common names, always search the Botanical name i provide, then you get the right plant . Thanks for the nice pics though !