Showy clusters of yellow orange to red trumpet-shaped flowers first appear in summer (earlier in frostfree climates) and are produced continuously until early autumn. The tubular flower buds are 3 - 4 in (7-10 cm) long and are followed by seed capsule 4-8 in (10-20 cm) long that often hangs on the vine through the winter.

WARNING: Its common name cow-itch vine refers to the plant's ability to produce a skin irritant. Contact may result in redness, burning and itching in susceptible individuals. This plant may also become invasive when grown under optimal conditions.

the entire vine