Rose is right. I believe your picture is what we call Cypress Vine, Ipomoea quanoclit, a native of Mexico and South America. The feathery leaves look a bit like a bald cypress leaf. There is also a version with the feathery leaf more in a fan shape, that is Ipomoea sloteri, the Cardinal Climber
Both are grown in the US as annual vines for their red flowers. Might be perenial in the tropics. A few members of the Ipomoea are famous for their psychodelic alkoloid contents. There is no mention of this plant in that context, so either it is "mostly harmless" or has not been tested. So much for "Deathroot"
Leo