Albizia is a genus in the flowering plant family Mimosaceae, sometimes called sweet grasses. Song ran (Albizia’s local name) is a medicinal plant that is popularly grown in Thai Nguyen province and used as a folk medicine remedy for many ailments such as shingles, common skin diseases by many local people. We conducted the research “Study of plant characteristics, chemical compositions, and anti-inflammatory and anti-analgesic effects of the Albizia genus harvested in Thai Nguyen” to improve the value of this medicinal plant. Based on the morphological observations, we determined that the plant specimens collected in Thai Nguyen, a province in the north of Vietnam, with local names as “Song ran” or “cam thao” belonged to the species Albizia myriophylla Benth., a member of the Mimosaceae family. The analytical phytotomy of leaves, stem, and root described herein also supported the above conclusion. It was the first comprehensive study into the morphological characteristics and anatomical features of Albizia myriophylla Benth. in Thai Nguyen.