Neosepicaea jucunda, commonly known as jungle vine, is a species of plant in the jacaranda family Bignoniaceae. It is a twining vine that is native to the Wet Tropics bioregion of Queensland, Australia, and was first described in 1864.
It is a twining vine with a stem diameter up to . It has leaves (i.e. compound leaves that are divided into three leaflets) that are opposite and . The leaf stalk, or petiole (botany), may be as long as . The leaflet blades can be up to long and wide.
The inflorescence is a panicle produced from any part of the stem or branches, carrying a number of pinkish-purple tubular flowers. The flowers are about wide when fully open, and about long with a number of short lobes at the apex. The fruit is a capsule (fruit) about long and around. It splits along a longitudinal seam on maturity, releasing numerous winged seeds.
This plant grows in rainforest of northeast Queensland, from a little north of Cooktown to about Townsville. The altitudinal range is from sea level to about .
It was first described in 1864 (as Haussmannia jucunda) by Ferdinand von Mueller, based on material collected from the Seaview Range, near Ingham. It was transferred to Neosepicaea in 1957 by Dutch botanist Cornelis Gijsbert Gerrit Jan van Steenis.