| Noun | 1. | iva - any of various coarse shrubby plants of the genus Iva with small greenish flowers; common in moist areas (as coastal salt marshes) of eastern and central North Americagenus Iva - small genus of American herbs or shrubs; in some classifications placed in a separate family Ambrosiaceae bog plant, marsh plant, swamp plant - a semi-aquatic plant that grows in soft wet land; most are monocots: sedge, sphagnum, grasses, cattails, etc; possibly heath | |