xerophyte vs agave

xerophyte and agave both are nouns.

Word	Noun	Adjective	Verb	Adverb
xerophyte	Yes	No	No	No
agave	Yes	No	No	No

As nouns, agave is a hyponym of xerophyte; that is, agave is a word with a more specific, narrower meaning than xerophyte:

xerophyte: plant adapted for life with a limited supply of water; compare hydrophyte and mesophyte
agave: tropical American plants with basal rosettes of fibrous sword-shaped leaves and flowers in tall spikes; some cultivated for ornament or for fiber

Other hyponyms of xerophyte include American aloe, century plant.

xerophyte (noun)	agave (noun)
plant adapted for life with a limited supply of water; compare hydrophyte and mesophyte	tropical American plants with basal rosettes of fibrous sword-shaped leaves and flowers in tall spikes; some cultivated for ornament or for fiber