aerophyte

n. epiphyte, plant which grows on another plant but is not a parasite

(n.)
A plant growing entirely in the air, and receiving its nourishment from it; an air plant or epiphyte.
  

Noun
1. plant that derives moisture and nutrients from the air and rain; usually grows on another plant but not parasitic on it
(synonym) air plant, epiphyte, epiphytic plant
(hypernym) plant, flora, plant life
(hyponym) waxflower, Clusia insignis