Cinnamomum parthenoxylon is an evergreen tree in the genus Cinnamomum, 10–20 m (33–66 ft) tall. It is native to South and East Asia (Bhutan, Burma, Cambodia, China, India, Indonesia, Laos, Malaysia, Nepal, Philippines, Thailand, and Vietnam). In Vietnam, the tree is considered Critically Endangered.
C. parthenoxylon known in English as Selasian wood, saffrol laurel, or Martaban camphor wood. It has the outdated heterotypic synonym Laurus porrecta (Roxb.). The species name parthenoxylon derives from parthenos xylon (Greek: παρθενός ξύλον), meaning "virgin wood". The common name in Spanish is alcanforero amarillo (in English: "yellow camphor") and it is thought to be the tree known in Khmer as mreah prew phnom (Khmer: ម្រះព្រៅភ្នំ).
The tree has gray to brown bark. Its leaves are glossy green ovals 7–10 cm long with a point at the end. Like many plants in the Lauraceae, the leaves give off a pleasant smell when crushed. The flowers appear in clusters and are green and very small. The fruits are blackish drupes.
In Indonesia, the flowers of C. parthenoxylon symbolize love and connection between the living and the dead. Traditionally, in the Kudus Regency on the island of Java, the flowers were scattered on tombs by family members.
The tree is of special concern, as it is being harvested at a high rate to obtain safrole, a precursor to the pesticide synergist piperonyl butoxide, the flavorant and fragrance piperonal, and the psychoactive drug MDMA. Much of this illicit harvesting is happening in the Cardamom Mountains and Botum Sakor National Park in Cambodia at the moment. The documentary film "Forest of ecstasy" (Vanguard 2009) is investigating the subject on location.  
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- Adam Yamaguchi, Correspondent; Joanne Shen, Producer; Mike Horn, Editor; Yasu Tsuji, Editor (29 October 2009). "Forest of Ecstasy". Vanguard. Season 3. Episode 3. Current TV. Retrieved 8 July 2011. (Episode is not available. Date: February 2014)
- Documentary film: Forest of Ecstasy Adam Yamaguchi (reporter). Vanguard 2009. Hosted by Cambodian Information Center
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