An example of tropical orchid is

Orchids belong to one of the largest plant families in the world with 600 - 800 genera and 25,000 - 30,000 species both in the tropics and temperate plant hardiness zones. Light, temperature, humidity, aeration and nutrition are the major factor that is required optimally for the growth and flowering of orchids.
Tropical orchid is Vanda, Dendrobium, Onicidium, etc.