About Cardamine pensylvanica Muhl.
Cardamine pensylvanica Muhl. is a biennial herb that typically grows in moist to wet habitats, including the muddy ground along riverbanks. It produces one or more erect or leaning branching stems, which range in color from purple to green and reach heights between 10 cm and 70 cm, or 4 to 28 inches. Its leaves are hairless and divided into several rounded to oval lobes, most of which hold one or two smaller lobes each. The large terminal leaflet at the tip of a leaf typically has three lobes instead. Most of the plant’s leaves grow along its stems, and it does not form a basal rosette. Its inflorescence holds many individual flowers, each with four white petals a few millimeters in length. Flowering occurs between April and October. After flowering, it produces a slender fruit called a silique that measures 2 to 3 cm, or 0.8 to 1.2 inches, long.