The term "Subfamily Philadelphaceae" refers to a family of flowering plants that belong to the Ericales order. This subfamily is known for its diversity and species richness. Some of the synonyms used for the term "Subfamily Philadelphaceae" include the family name "Philadelphus," "Mock Orange Family," and "Philadelphia Family." The former is the most commonly used synonym for this subfamily. It comprises around 70 species of deciduous and evergreen shrubs, which are widely distributed across the globe. The name "Mock Orange Family" is derived from the plants' fragrant white or cream-colored flowers that resemble those of the orange tree but lack the edible fruit.