Order Oleales refers to a group of plants that produce flowers with a five-lobed corolla, typically found in tropical regions. The term "Oleales" is derived from the Oleaceae family, which includes many trees and shrubs, such as the olive tree, lilac, and ash. Some synonyms for Order Oleales include the Lamiales, which includes popular plants such as lavender and mint, and the Gentianales, which includes the vibrant and diverse Gentian family. Additionally, the Apiales, which includes the parsley and carrot families, and the Asterales, which include the daisy and sunflower families, are also sometimes used as synonyms for Order Oleales. These synonyms help categorize and understand the vast array of plants within this order.