The Inheritance of Orquidea Divina by Zoraida Cordova
The Montoya family is an interesting group of people; their matriarch Orquidea Divina is especially interesting and different. She's quite magical, too. Appearing in Four Winds decades before as a very young woman, she created an oasis out of nothing, leaving the townspeople to whisper about her and send the sheriff out on occasion to try to get her to leave. However, Orquidea stayed. She never left her little oasis, where food was always plentiful, the weather was beautiful, and there was a definite other-worldliness about it. Now Orquidea is calling her children and grandchildren back to Four Winds because she is dying and it's time to leave each of them an inheritance. When her family arrives, they are shocked to see Orquidea is not only dying, but is slowly transforming into a tree. Questions abound! Now it's seven years later, and two of her grandchildren and one great-grandchild have gifts that are definitely odd: Rey, Marimar, and Rhian...