Ipomoea indica (Burman f.) Merrill var. acuminata (Vahl) Fosberg
Convolvulaceae (Morning Glory) Family
The plant is an introduced herbaceous twining vine that habits fence rows, shrubs, roadsides, and in disturbed areas. It is pan-tropical in distribution. Its native range is uncertain but is believed to be the West Indies. In Alabama it can be found in the southern half of the state. Growing from a thickened root, the vines are 25-30 feet in length; rooting at the nodes when in contact with the soil. Young stems are green and downy with retrose (backward pointing) hairs while older stems are thick and rope-like. The sap is milky.
The leaves are alternate, stalked, and heart-shaped to three-lobed in outline; downy on both surfaces.
The flowers are produced in axillary cymes of 2-5 flowers; campanulate with 5 long sepals. The corolla is dark blue becoming purplish with age. Flowers open at night and usually wither by noon on hot days. On cool days, they may last the entire day. The pedicels and peduncles are downy with reflexed hairs and the sepals are downy with slender hairs.
Fruit is a capsule with 4-6 black seed.