Thunbergia erecta, commonly known as King's Mantle or Bush Clock Vine, is a species of flowering plant in the family Acanthaceae. It is native to tropical regions of Africa but is also cultivated in other parts of the world as an ornamental plant.

Here are some key features of Thunbergia erecta:

1. Appearance: Thunbergia erecta is a woody, evergreen shrub that can reach a height of 3 to 6 feet (0.9 to 1.8 meters). It has a bushy growth habit with dense foliage. The leaves are dark green, ovate or lanceolate in shape, and have serrated edges.

2. Flowers: The plant produces showy, trumpet-shaped flowers that are typically blue or purple, although cultivars with white or pink flowers are also available. The flowers are about 2 inches (5 centimeters) in diameter and grow in clusters. They have a prominent yellow or white throat and bloom throughout the year in suitable conditions.

3. Growing conditions: Thunbergia erecta thrives in warm and tropical climates. It prefers full sun but can tolerate partial shade. The plant is not frost-tolerant and requires protection from cold temperatures. It grows best in well-draining soil and benefits from regular watering and fertilization.

4. Uses: Thunbergia erecta is widely cultivated as an ornamental plant for its attractive flowers and foliage. It can be grown as a standalone shrub or used in mixed borders, hedges, or container gardening. The flowers attract butterflies, bees, and other pollinators, making it a popular choice for butterfly gardens.

5. Care: To care for Thunbergia erecta, provide it with regular watering, especially during dry periods. Mulching around the base of the plant can help conserve moisture and suppress weeds. Prune the plant in early spring to maintain its shape and remove any dead or damaged branches. It is also advisable to provide some support, such as a trellis or stakes, for the plant to climb if desired.