HABIT	AN ANNUAL HERB.
STEMS	MUCH BRANCHED, 0.3-1 M TALL; STEM AND BRANCHES SHARPLY QUADRANGULAR WITH LONGITUDINAL FURROWS AND WINGS ON THE ANGLES OF THE YOUNGER PARTS.
LEAVES	SIMPLE, OPPOSITE, SHORT-PETIOLED, GLABROUS, ELLIPTIC TO LANCEOLATE, NARROWED AT BOTH ENDS, ACUTE AT APEX, 2.5-8 CM LONG AND 2.5 CM WIDE.
FLOWERS	FLOWERS SMALL, WHITE WITH PURPLISH BLOTCHES OR ROSE-COLOURED, BORNE IN LAX, SPREADING TERMINAL AND AXILLARY PANICLED RACEMES.
FRUITS	FRUIT A LINEAR-OBLONG, COMPRESSED CAPSULE, ACUTE AT BOTH  ENDS, 1.9 CM LONG AND 0.3 CM WIDE.
SEEDS	NUMEROUS, SUBQUADRATE AND YELLOWISHBROWN.