The Sakariya vine, also known as Petrea Volubilis or Purple Wreath, is a stunning, vigorous climbing plant that boasts striking purple flowers and rough, sandpaper-like leaves. It's a popular choice for adding a touch of exotic beauty to gardens, particularly in India. 

Detailed Description:

Flowers:

The vine produces cascading clusters of star-shaped, purple (sometimes blue or whitish purple) flowers, which are visually appealing but not fragrant. 

Leaves:

The leaves are elliptical-oblong, 5-16cm long and 3-8cm wide, with a rough, sandpaper-like texture, hence the common name "Sandpaper Vine". 

Growth:

It can grow up to 12 meters (39 feet) tall as a vine, or as a shrub up to 4 meters (13 feet). The stems can be pubescent (covered in soft hairs). 

Blooming:

The plant blooms in the early summer and continues to flower until winter, with dormancy during the winter months. 

Other Names:

It is also known as Purple Wreath, Blue Petrea, Sandpaper Vine, Queen's Wreath, and Nilmoni Lata. 

Origin:

It originates from the rainforests of Tropical America and is now cultivated in various tropical and subtropical regions, including India. 

Uses:

It's commonly used as an ornamental plant to adorn porches, archways, pergolas, and walls, or as a standalone shrub.