Lignum Vitae (Dok Kaew Chaochom) The University symbol is “Dok Kaew Chaochom” or Lignum Vitae. Lignum Vitae was planted in Suan Sunandha after his visit to Java (Indonesia). Its flowers resemble Kaew flowers but the petals are purplish blue and the pollens are yellow. Its leaves also resemble Keaw leaves but they are more round and closer and its trunk is rounder. The first Lignum Vitae was planted in front of Building 11. It is now 15 meters tall.