Ruellia Brittoniana
紫花芦莉草，蓝花草，翠芦莉

Family name: Acanthaceae
Synonyms: Ruellia Coerulea, Ruellia Simplex, Ruellia Tweedyana, Cryphiacanthus Angustifolius, Ruellia Spectabilis
Common name: Mexican Petunia, Desert Petunia, Mexican Bluebells, Florida Bluebells, Spanish Ladies