HABIT	AN ERECT OR SUB-ERECT ANNUAL HERB.
STEMS	SLENDER, OFTEN ROOTING AT THE BASE, SUBTERETE, GLABROUS OR PUBERULOUS.
LEAVES	2.5-5 CM LONG, ELLIPTIC-LANCEOLATE, OBLONG, SUBSESSILE.
FLOWERS	IN ERECT, TERMINAL SPIKES; WHITE, BLUE OR PINK WITH DARKER SPOTS.
FRUITS	CAPSULE ACUTE WITH SCARIOUS FACES AND HARD EDGES.
SEEDS	SUB-ORBICULAR, RUGOSE WITH CONCENTRIC FURROWS; PALE BROWN.