Abstract
Forty four plant species related to 14 families were identified as the weeds of maize fields from Muzafferabaa during the month of September-October, 1985. The families in their decreasing orders of weed prevalence respectively were: Poaceae(8sp.) Asteraceae(6sp.) Amaranthaceae(5sp.) Lamiaceae, Euphorbiaceae, Papilionaceae (4 species each), Cyperaceae (3sp.) Convolvulaceae and Malvaceae(2sp. each). Solanaceae. Oxalidaceae, Tilliaceae, Commelinaceae, Onagraceae and Equisetaceae had one species each. Setaria pumila followed by Commelina benghalensis was the most frequent weed. The constancy classes II, IV and V were represented by 31,11 and 2 species respectively. The biological spectrum consisted of 68.18% therophytes, 15.90% hemicryptophytes, 4.54% Chamaephytes; 9.09% Geophytes and 2.27% Nanophanerophytes.
