Board Thread:Wiki-Related Discussion/@comment-1916997-20171222202521/@comment-25926288-20180505105823

RedCoatOfficial wrote: This thread was cleared up tonight. Don't worry if people do mental gymnastics around it, though.
 * 1) It was referred to as Gothel's curse, previously as Drizella's curse, and also during 7x10 as Regina's. So we can safely say the Coven as a whole cast it.
 * 2) Regina was the Eighth Member. Gothel literally says this.

1. I think Gothel's curse was the tree one, though, but I could be mistaken.