HABIT	AN ERECT, SOFT-STEMMED SHRUB USUALLY LESS THAN 1 M TALL.
STEMS	BRANCHES SOMEWHAT ZIG-ZAG, ALMOST GLABROUS, GREEN OR REDDISH-TINGED TO ALMOST BLACK.
LEAVES	LARGE, ACRID-SMELLING WHEN CRUSHED, TRIANGULAR-OVATE IN OUTLINE, IRREGULARLY TOOTHED OR LOBED, 7.5-15 CM LONG AND 3.2-7.5 CM WIDE, LARGEST LEAVES USUALLY TOWARDS THE ENDS OF SHOOTS, APEX ACUTE OR ACUMINATE.
FLOWERS	ERECT, SOLITARY IN LEAF AXILS, TUBULAR TO FUNNEL-SHAPED; WHITE TO VIOLET OR PURPLE ON THE OUTSIDE AND WHITE WITHIN.
FRUITS	A GLOBOSE CAPSULE, USUALLY COVERED WITH STOUT TUBERCLES OR PRICKLES, BORNE ON A SHORT, THICK DROOPING PEDUNCLE; CAPSULE 4-VALVED OR IRREGULARLY DEHISCENT NEAR THE APEX.
SEEDS	YELLOWISH-BROWN, FLAT.