Botanical names: Bartlettina sordida, Eupatorium sordidum, Eupatorium megalophyllum
Common name: Purple Torch
Family: Asteraceae
Origin: Mexico
Bartlettina sordida, formerly classified in the genus Eupatorium, is an evergreen, erect shrub with large clusters of lilac flowers.
Similar plants: Bartlettina sordida (Purple Torch)
Link to this plant:
https://toptropicals.com/catalog/uid/bartlettina_sordida.htm