is a biological genus in the family Acanthaceae and order Lamiales.
Thunbergia grandiflora
Thunbergia alata
Thunbergia erecta
Thunbergia laurifolia
Thunbergia mysorensis
Thunbergia fragrans
Avicennia
Blechum
Yeatesia
Megaskepasma
Anisacanthus
Andrographis
Dicliptera
Barleria
Elytraria
Stenandrium
Dyschoriste
Hygrophila
Odontonema
Siphonoglossa
Justicia
Ruellia
Carlowrightia