#genus_Iva  small genus of American herbs or shrubs; in some classifications placed in a separate family Ambrosiaceae
  supertype:  asterid_dicot_genus__asteriddicotgenu  genus of more or less advanced dicotyledonous herbs and some trees and shrubs
  member of:  family_Compositae
  member:  marsh_elder__marshelder__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 America

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