Ageratum conyzoides L.
Common Name : Goat weed
Family : Asteraceae

HABIT |
ERECT, OFTEN BRANCHED, ANNUAL HERB AND OFTENDECUMBENT; UP TO 120 CM TALL. |
STEMS |
MUCH BRANCHED AND ROOTING AT THE BASE; STEM,NODES AND YOUNGER PARTS WITH RATHER LONG, PARTLY CRISPY HAIRS. |
LEAVES |
OPPOSITE OR THE UPPER ALTERNATE, BROADLY OVATE OR RHOMBOID-OVATE
TO TRIANGULAR, 2-10 CM LONG AND 1.5-5 CM WIDE, APEX SUBACUTE, MARGINS |
FLOWERS |
FLOWERS IN FLAT-TOPPED, PEDUNCLED (5-17 MMLONG) CORYMBS (60-70 FLOWERS). FLOWERS WHITE, PALE BLUE OR VIOLET WITH A DISAGREEABLE ODOUR. |
FRUITS |
ACHENE OBLONG, 5-ANGULAR, BLACK WITH PALE BASE, GLABROUS OR SLIGHTLY HAIRY, 1.5-2 MM LONG WITH AWN-TIPPED, SERRATE PAPPUS-SCALES. |