HABIT	AN ANNUAL, UP TO 3 M HIGH.
STEMS	SQUARE IN CROSS SECTION.
LEAVES	LONG AND NARROW, BORNE IN WHORLS OF BETWEEN 4-10 AT INTERVALS ALONG THE STEM.
FLOWERS	FLOWERS ARE EXTREMELY INCONSPICUOUS, CONSISTING OF SMALL CLUSTERS OF WHITE, FOUR PETALLED FLOWERS, PRODUCED IN THE AXILS OF THE LEAVES.
FRUITS	SMALL, HARD, SPHERICAL, GREEN AT FIRST BEFORE BECOMING PURPLE.