The religious organization that you are referring to, has a previous name, which is the original.
You should stay with the original, as its more indicative of the truth.
Its this.. The Council of Ephesus in 431 sanctioned the cult of the Virgin as Mother of God.
Notice..."cult of the Virgin"..
Later this name of your "tree" was reformed and remodeled and given a new religious moniker. "catholic'.
I prefer "cult of the virgin" as that was what the Original " church Fathers" chose for its title, as this accurately represents its denomination.
If you need an update, then go and find member = Marymog (Mary-mother of God) as she's up to date regarding the original denomination.
If you are still confused, then just do a general online search of this...
Mariology