This is the 8586th most frequent French word.
appelées
"Appelées" means "called" or "named" (feminine plural).
In this sentence, "appelées" is the past participle of "appeler" used as an adjective to describe "régions." It agrees in gender and number with "régions."
Les régions appelées « zones prioritaires » reçoivent plus de financement.
The regions called "priority zones" receive more funding.
Here, "appelées" is the past participle of "appeler," functioning as part of a passive construction indicating the institutions invited or designated for participation.
Nous avons vu des institutions appelées à participer au projet.
We saw institutions called upon to participate in the project.
The usage of "appelées" here is in a passive form to describe how the flowers are denominated in the language, agreeing with "fleurs" in gender and number.