Prestonia calycina

Prestonia calycina is a member of the Apocynaceae family, a group of flowering plants commonly known as the dogbane family. This species is native to parts of South America, including northeastern Argentina, southeastern and southern Brazil, and Paraguay. The scientific name was established in 1860 by the botanist Müll.Arg. The genus Prestonia is characterized by its climbing or trailing growth habit and is often associated with tropical and subtropical regions. As part of the Apocynaceae, P. calycina may share traits such as milky sap and specialized floral structures typical of the family.