parthenium hysterophorus & x28;parthenium weed& x29;

0515 212 330 abasalrosetteduring abasalrosetteof also annual areappressedpubescent arrangedleaves become bipinnatifid bipinnatisect branched branches can close covered decrease deeply degree divided early erectherbaceousplant form forms greenish grooved grows growth hairs heightmature hirsute hysterophorus hysterophorusis large leaves lesser lie long longitudinally lower maturitythealternately more much muchbranched occasionally parthenium petioles reach relatively short shortlived simple size small stage stages stalks stems stiff surface surfaces tall than their undersides upper upright usually weed wide