Cardamine concatenata (Michx.) O. Schwarz
Cut Leaved Toothwort
Family - Brassicaceae
Stems - To +20cm tall, erect, herbaceous, glabrous or pubescent in upper portions, from thick rhizomes.
Leaves - Two or three per plant, alternate, 3-5 palmately lobed, variable. Lobes linear-lanceolate, coarsely toothed (laciniate) to entire, glabrous, 6cm long, 1cm broad. Teeth of lobes mucronate (minutely). Petioles glabrous to pubescent.
Inflorescence - Terminal raceme, compact early but quickly elongating, axis short hirsute, pedicels +/-1cm, elongated in fruit, pubescent to glabrous.
Flowers - Petals 4, whitish with a hint of pink, 5mm broad, 1.6cm long, ligulate, glabrous, rounded at the apex, attenuate at the base. Stamens 6, filaments 8mm long, anthers yellow. Style erect, 7mm long. Ovary terete, longer than broad. Stigma globose. Sepals 4, oblong, brownish-green with lighter margins, entire, glabrous, to 3mm long. Fruits terete, 2-5cm long, +/-2mm in diameter, glabrous.
Flowering - March - May.
Habitat - Low woods, slopes, ravines.
Origin - Native to U.S.
Other info. - This is an
interesting little member of the Brassicaceae which
is found in woodland habitats. It is a characteristic spring woodland plant in Missouri. The flowers are larger than those of most genera in the same family. This species is highly variable, especially the leaves. The large flowers and 3-5-lobed leaves are the characteristics to look for when trying to ID this plant.
Photographs taken at Rock Hill Park, Boone County, MO., and at Eagle Bluffs Conservation Area, Boone County, MO., 3-27-04.