- wild celery, Apium graveolens - herb of Europe and temperate Asia
--1 is a kind of herb, herbaceous plant
--1 is a member of Apium, genus Apium - tape grass, eelgrass, wild celery, Vallisneria spiralis - submerged aquatic plant with ribbonlike leaves; Old World and Australia
--2 is a kind of aquatic plant, water plant, hydrophyte, hydrophytic plant
--2 is a member of Vallisneria, genus Vallisneria