Cardamine impatiens - Narrowleaf Bittercress

Narrowleaf Bittercress is a slender, biennial herb, that produces sterile leaves in the first year, one to several flowering stems during the next. Its leaves are pinnate with several pairs of lanceshaped, toothed leaflets and a slightly longer end leaflet. The short petals surpass the calyx by half of its length. Sepals are oblong, 1.2-2 × 0.7-1 mm. Petals are white, inverted-lanceshaped, 1.5-4 × 0.6-1.2 mm, rarely absent. Stamens are 6, filaments 2-3 mm, anthers ovate, 0.3-0.5 mm. The seeds are arranged in one row on each side of the central membrane of the narrow pod and are ejected out in a shower due to the tension formed as the seed pod (silique) dries. It grows on walls, open ground in shady places in forests usually disturbed by man. Narrowleaf Bittercress is found in the Himalayas, at altitudes of 1500-4000 m. Flowering: May-July.