Thunbergia mysorensis, also called Mysore trumpetvine or Indian clock vine, is a species of flowering plant in the family Acanthaceae. A woody-stemmed evergreen, this vine is native to southern tropical India.
Thunbergia mysorensis often reaches 6 metres (20 ft) and has long narrow medium green leaves. The dramatic and very large pendent hanging blossoms have individual flowers in a bold curved shaped. This is enhanced by their being a rich saturated yellow, with maroon to brownish red outer tip coloring. The vine blooms from spring to autumn. Thunbergia mysorensis is cultivated as a popular ornamental plant in tropical and sub-tropical gardens, conservatories and greenhouses. It grows quickly in frost-free temperate climates.