| Noun | 1. | Diplopterygium - scandent thicket-forming ferns of Asia to western Pacific fern genus - genera of ferns and fern allies family Gleicheniaceae, Gleicheniaceae - a family of ferns belonging to order Filicales Diplopterygium longissimum, giant scrambling fern - large scrambling fern forming large patches to 18 feet high; Pacific region and China |