Listera ovata vs orchid

Listera ovata and orchid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Listera ovata	Yes	No	No	No
orchid	Yes	No	No	No

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

Listera ovata: orchid having a pair of ovate leaves and a long slender raceme of green flowers sometimes tinged red-brown; Europe to central Asia
orchid: any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors

Other hypernyms of Listera ovata include orchidaceous plant.

Listera ovata (noun)	orchid (noun)
orchid having a pair of ovate leaves and a long slender raceme of green flowers sometimes tinged red-brown; Europe to central Asia	any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors