The second observation I made during our campus outing with Dr. Belaire was this tree, also near JBWS. The blooms sort of reminded me of cherry blossoms but I wasn’t sure so I decided to take a close-up photo of the flowers to see what the iNaturalist community thought. I quickly received two id’s for Mexican Buckeye. After doing some research I agreed with these two users. The Mexican Buckeye is native to Texas, blooms during the month of March, when I made this observation, and is an 8-12 foot tree, which fit the description of the tree I saw outside of JBWS. I also found out that Mexican Buckeye flowers are fragrant but their seeds are poisonous!
Observation: http://www.inaturalist.org/observations/5433937
Source: https://www.wildflower.org/plants/result.php?id_plant=unsp