Petrea volubilis, commonly known as purple wreath, queen's wreath, sandpaper vine, and nilmani, is a species of plant in the family Verbenaceae, native to Tropical America.
The species is an evergreen flowering vine. It is grown as an ornamental plants, valued especially for its display of violet flowers. The flowers emerge from bracts.
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* Tota la informació es basa en investigacions científiques publicades