water plant vs hydrophyte

water plant and hydrophyte both are nouns.

Word	Noun	Adjective	Verb	Adverb
water plant	Yes	No	No	No
hydrophyte	Yes	No	No	No

As nouns, water plant and hydrophyte are synonyms defined as:

water plant and hydrophyte: a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth

Other synonyms of water plant include aquatic plant, hydrophytic plant.

water plant (noun)	hydrophyte (noun)
a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth	a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth