HABIT	A PROSTRATE, ASCENDING OR ERECT, ROUGH-HAIRY ANNUAL HERB, UP TO 90 CM TALL.
STEMS	MUCH-BRANCHED, SLENDER, REDDISH, COVERED WITH SHORT, STIFF HAIRS, ROOTING AT THE LOWER NODES.
LEAVES	OPPOSITE, SIMPLE, ROUGH, DULL GREEN, OVATE TO OBLONG-LANCEOLATE, 2-10 CM LONG, 1-3 CM WIDE, APEX ACUTE OR BLUNT, BASE ATTENUATE, MARGIN ENTIRE OR SLIGHTLY SERRATE, PUBESCENT, MOSTLY SESSILE, THE LOWER LEAVES SOMETIMES SHORT-PETIOLED.
FLOWERS	FLOWER HEADS UP TO 1 CM IN DIAMETER, A CLUSTER OF SESSILE WHITE FLOWERS, IN UPPER AXILS OR TERMINAL, SOLITARY OR TWO HEADS TOGETHER. RAY FLOWERS WHITE.
FRUITS	ACHENES LIGHT-BROWN TO BLACK, LATERALLY-FLATTENED, WEDGE-SHAPED, 2-3 MM LONG, 0.9 MM WIDE. APEX WITH SHORT, USUALLY WHITE HAIRS THAT ARE EASILY BROKEN OFF BUT TWO HORNLIKE PROJECTIONS OFTEN REMAIN, PAPPUS ABSENT. THE REST OF THE ACHENE IS GLABROUS AND COVERED WITH MANY SMALL WARTS.