Huanghuali is one of the precious tree species in the world and a specialty of Hainan Island. Wood chips can be used as spices and can treat hypertension. Also known as "rosewood" and "antihypertensive wood", Cantonese people call it "rosewood". 1980 was officially named "Dalbergia hainanensis", which was called "Huang Huali" in folk customs.

Hainan rosewood is called Dalbergia odorifera in Compendium of Materia Medica. Soaking its sawdust in water can lower blood pressure and blood fat, and can relax muscles and promote blood circulation when used as a pillow. Huang Huali is extremely easy to survive, but it is extremely difficult to become a successful person. A tree with a thick bowl can be used as wood, only the size of a rolling pin, and it takes hundreds of years to become a timber. Its hardwood is a good material for making classical hardwood furniture.

Huang Huali is mainly used for furniture, which belongs to a rare variety and is not sold in pharmacies.

If you want to buy a pure wooden pillow made in Huang Huali, it will cost at least 10,000 yuan.