The 361 year old decidious Coquito de la Iglesia de Jalatlaco trees in the atrium of Templo de San Matías Jalatlaco are beginning to bloom.
El Coquito (aka, Pseudobombax ellipticum, Amapola, Xiloxochitl, Sospó, Clavellina, Shaving brush tree, Cabellos de Ángel, Angel hair) is one of my favorite trees in Oaxaca.
Mexican Peso Converter
View From Casita Colibrí 
My very favorite! This reminds me to look for the one in the little park at the corner of Alcalá y Abasolo.
On the Independencia side of the Cathedral, there is a white one.