Drooping bittercress

Cardamine enneaphyllos, commonly known as drooping bittercress or nine-leaved coralwort, is a herbaceous perennial in the family Brassicaceae native to the deciduous and mixed mountain forests of central and south-eastern Europe, from the eastern Alps and the Apennines through the Carpathians to the Balkans. The plant arises from a fleshy, scaly, white, horizontal rhizome and produces unbranched, glabrous, erect stems 20 to 40 centimetres tall. Stem leaves are characteristically arranged in a single whorl of three near the top of the stem, each leaf pinnately compound with three leaflets that are themselves often deeply lobed, giving the typical appearance of nine narrow lanceolate, sharply serrate leaflets — the source of the epithet enneaphyllos. Basal leaves are usually absent at flowering. The inflorescence is a terminal nodding raceme of three to twelve flowers, each 1.5 to 2 centimetres across with four pale cream to yellowish-white, obovate, spreading petals and six stamens. The fruit is a slender erect silique 3 to 8 centimetres long that splits explosively to release the seeds.