Chinese perfume tree (Aglaia odorata) is a small, evergreen tree in the mahogany family. It is an ornamental plant in American gardens, typically growing to 10 feet (3 m.) or under and producing intensely fragrant sprays of unusual yellow flowers.

Michelia champaca, also known as Champaca or Joy perfume tree. Michelia champaca is a flowering tree native to Southeast Asia, including China, and is highly valued for its fragrant flowers.

The Chinese perfume plant produces beautiful, aromatic flowers that have a strong and captivating scent. The flowers are usually yellow or orange and have a unique fragrance often described as sweet, fruity, and intense. The scent is highly sought after in the perfume industry and is used in the creation of high-quality perfumes and fragrances.

Apart from its aromatic flowers, Michelia champaca is also appreciated for its glossy, evergreen foliage and can reach a moderate height of around 6 to 12 meters (20 to 40 feet) when mature. It prefers a warm, tropical climate and well-drained soil.

The essential oil extracted from the flowers of Michelia champaca is sometimes referred to as "champaca oil" or "joy oil" and is highly prized in perfumery for its rich and exotic fragrance. It is often used as a base note in perfumes, lending its unique scent to various fragrance compositions.

It's important to note that while Michelia champaca is commonly referred to as the "Chinese perfume plant," it is not exclusive to China and can be found in other regions of Southeast Asia as well.