Chen Collection, Middle Volume
Radical: Tree (mù)
Kangxi stroke count: 11
Page 529, Entry 03
According to the Collection of Rhymes (Jiyun) and the Classified Categorization (Leipian), the pronunciation is bei.
The Miscellaneous Morsels from Youyang (Youyang Zazu) states that the beiduo tree grows in the country of Magadha. It reaches a height of sixty or seventy feet, remains green throughout the winter, and its bark is used for writing. Originally written as bei. The common form is written as bei.
The Records of Guangzhou (Guangzhou Ji) states that at Song Temple there is a tree of reflection, which is the beiduo tree. Because someone sat beneath a beiduo tree to meditate, it was named accordingly.
The Record of the World (Huanyuzhi) states that Myanmar is located to the south of Yunnan. It possesses a fan palm, five or six feet high, which bears fruit like seeds; this is the bei tree. The Burmese people take its leaves to write books.
A poem by Zhang Qiao of the Tang dynasty titled Poem on the Beiduo Tree: It should have grown from a tiny tip, only then to see it brush the red clouds. Obtained as a seed from the Western Kingdom, its shade reflects the past dynasties.
Further details are provided in the entry for the character bei.