Cleistes divaricata vs orchid

Cleistes divaricata and orchid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cleistes divaricata	Yes	No	No	No
orchid	Yes	No	No	No

As nouns, orchid is a hypernym of Cleistes divaricata; that is, orchid is a word with a broader meaning than Cleistes divaricata:

Cleistes divaricata: orchid of northeastern United States with magenta-pink flowers having funnel-shaped lip; sometimes placed in genus Pogonia
orchid: any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors

Other hypernyms of Cleistes divaricata include orchidaceous plant.

Cleistes divaricata (noun)	orchid (noun)
orchid of northeastern United States with magenta-pink flowers having funnel-shaped lip; sometimes placed in genus Pogonia	any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors