HABIT	PERENNIAL, ERECT OR ASCENDING, RARELY PROSTRATE.
STEMS	12-40 CM TALL; ROOTSTOCK OFTEN TUBEROUS; BRANCHES SOMETIMES WITH SHORT BRANCHLETS, STRIGILLOSE.
LEAVES	OFTEN OPPOSITE, SOMETIMES ALTERNATE ON LOWER OR UPPER STEMS; LEAF BLADE OVATE OR BROADLY OVATE, LANCEOLATE OR NARROWLY LANCEOLATE; BASE CUNEATE TO ROUNDED, RARELY SUBCORDATE, MARGIN ENTIRE, APEX SUBOBTUSE, ACUMINATE.
FLOWERS	FLOWERS MINUTE, IN SMALL AXILLARY ANDROGYNOUS CLUSTERS.
FRUITS	ACHENES WHITE, LIGHT TO DARK YELLOW OR LIGHT BROWN, OVOID, 1-1.2 MM.
SEEDS	SUBCYLINDERIC, TRUNCATE AT APEX, REDDISH BROWN.