👉 Oriolus is a genus of flowering plants in the family Apocynaceae, native to East Asia. This genus includes over 100 species that are commonly known as "orioluses" (also spelled orioles). The name "oriolus" comes from the Latin word "origenis," which means "origin." These plants have large, glossy leaves and small flowers with a yellowish color. They are often used in traditional medicine for their medicinal properties.