Ipomoea arborescens

Ipomoea arborescens

Ipomoea arborescens (Humb. & Bonpl. ex Willd.) G. Don.
Engl.: tree morning glory, palo blanco, palo santo, quauhzahuatl.

I have no articles for this botanical term, but there might be some for the next level down (if found).