Another very distinct and only distantly related species, formerly treated as Thuja orientalis, is now treated in a genus of its own, as Platycladus orientalis.
Outra especie moi distinta e só relacionada de xeito afastado, anteriormente tratada coma Thuja orientalis (Árbore da vida), trátase hoxe nun xénero propio, coma Platycladus orientalis.