HABIT	PERENNIAL AQUATIC HERB.
STEMS	A SHORT THICK ERECT RHIZOME, THE SCAPES ERECT, 20-40 CM HIGH.
LEAVES	ERECT OR ASCENDING, NOT FLOATING, OFTEN EXCEEDING THE SCAPES, LONG-PETIOLATE, THE PETIOLE VAGINATE; LEAF BLADES VARIABLE IN SHAPE, LANCEOLATE TO OBLONG-ELLIPTIC, SOMETIMES BROADLY OVATE, MOSTLY 8-18 CM LONG, ACUTE TO ROUNDED AT THE APEX, ATTENUATE AT THE BASE.
FLOWERS	INFLORESCENCES UMBELLIFORM, 2-12 FLOWERED, THE PEDICELS 3-4 CM LONG, SOMEWHAT DILATED AND TRIGONOUS ABOVE; FLOWERS YELLOW, ABOUT 1.5 CM BROAD.
FRUITS	FOLLICLES ABOUT 1 CM LONG.