a climbing plant with blue, pink, or white flowers shaped like a trumpet (= a brass instrument with a wide part at the end where the sound comes out), sometimes grown for its flowers and sometimes growing wild

Like most plants, morning glories usually grow up towards the sun. 与大多数植物一样，牵牛花通常朝向太阳生长。

We had a jungle of morning glory in our backyard. 我们的后院有一片牵牛花的丛林。