Black moss and Epiphytic plant

Black moss noun - Dense festoons of greenish-grey hairlike flexuous strands anchored to tree trunks and branches by sparse wiry roots; southeastern United States and West Indies to South America.

Epiphytic plant and black moss are semantically related. In some cases you can use "Epiphytic plant" instead a noun phrase "Black moss".

Epiphytic plant noun - Plant that derives moisture and nutrients from the air and rain; usually grows on another plant but not parasitic on it.

Black moss and epiphytic plant are semantically related. Sometimes you can replace phrase "Black moss" with "Epiphytic plant", this phrases are similar.