Neslia paniculata subsp. paniculata

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 316

(a) Subsp. paniculata :

Silicula usually broader than long, base truncate, not apiculate (excluding the often persistent style), and with only two longitudinal ribs on the margin. 2n= 14. C. & E. Europe, extending southwards to S. France, N. Italy and Bulgaria; naturalized in the north.