Petrea volubilis albiflora, commonly known as White Queen's Wreath or Sandpaper Vine, is a cultivar of the Petrea volubilis plant. It is a climbing vine that belongs to the Verbenaceae family. The species is native to tropical regions of Central and South America, including Mexico, Brazil, and the Caribbean.

Petrea volubilis albiflora is popular among gardeners for its attractive and abundant clusters of white flowers. The flowers are small and delicate, but they form large, cascading panicles that give the vine a stunning appearance. The plant blooms profusely during warm weather, typically in spring and summer, attracting butterflies and other pollinators.

The leaves of Petrea volubilis albiflora are dark green, leathery, and have a rough texture, resembling sandpaper, hence the common name "Sandpaper Vine." The vine itself is vigorous and can climb up to 30 feet or more, making it suitable for trellises, arbors, or fences. It can also be grown as a sprawling ground cover if left untrained.

When it comes to cultivation, Petrea volubilis albiflora prefers a warm, tropical climate and thrives in full sun to partial shade. It requires well-draining soil and regular watering, but it can tolerate brief periods of drought once established. Pruning is recommended to control its size and shape.

Overall, Petrea volubilis albiflora is a beautiful and eye-catching vine, ideal for adding a touch of elegance to gardens and landscapes in suitable climates.