1. The genus is monophyletic and sister to Thujopsis.Members are commonly known as Arborvitaes, (from Latin for tree of life) thujas or cedars

2. The genus is monophyletic and sister to Thujopsis.They are commonly known as Arborvitaes (from Latin for tree of life) or Thujas; several species are widely known as cedar but, because they are not true cedars (Cedrus), it