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 America.

• 通常生在北美东部和中部的湿润地区（如沿海沼泽）的地松属各种粗糙的灌木状植物的任何一种；具有微绿色的小花。