2011-04-16 Lower Austria, district Wien-Umgebung (mixed forest; 388 msm Quadrant 7862/1).German name: Wald-SchaumkrautID by Manfred A. Fischer - compare similar
Cardamine hirsuta which has much longer fruit and at most 3 pairs of leaflets on its rosetta leaves; also, the stem of C. flexuosa is bending and twisting (name!), as opposed to straight C. hirsuta.