Topology from ML and BI analyses of Dryopteris species using six marker regions consisting of 3734 total bases (psbA-trnH, rbcL-accD, rbcL, trnL-trnF, trnP-petG, rps4-trnS and matK). The tree is drawn to scale, with branch lengths measured in the number of substitutions per site. Bootstrap values are specified at the branch nodes (cut off >50%) / Bayesian лала. Dryopteris blanfordii subsp. nigrosquamosa and closely related species are marked with a blue rectangle.

  Part of: Krinitsina AA, Belenikin MS, Churikova OA, Kuptsov SV, Antipin MI, Logacheva MD, Speranskaya AS (2017) Systematic position of Dryopteris blanfordii subsp. nigrosquamosa (Ching) Fraser-Jenkins within the genus Dryopteris Adans.. PhytoKeys 90: 89-112.