$modus 0: smartphone
$modus 1: smartphone
Polystichum dubium
Polystichum dubium (Karsten) Diels [Accepted]
Dryopteridaceae Dryopteridoideae Dryopterideae
2 828377 Polystichum dubium (Karsten) Diels [80 776904 Phegopteris dubia Karsten]
Ann. Missouri Bot. Gard., vol. 98 : p. 436, fig. 1.2 (2011) [D.S. Barrington]
6 828377 Polystichum dubium (Karsten) Diels [125 776904 Phegopteris dubia Karsten]
Fieldiana, Bot., vol. 27(): (Pteridophyta of Peru 4): p. 39, fig. 9 (1991)
6 828377 Polystichum dubium (Karsten) Diels [125 776904 Phegopteris dubia Karsten]
G.K.W.H. Karsten, Fl. Colomb., vol. 1 : t. 84 (1869) [Düwel]