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| 1 Leaves 1-pinnate to 1-pinnate-pinnatifid (the pinnae entire or pinnatifid); sori elongate, 2.5-6× as long as wide, even the larger sori generally straight and not extending across the veins. |
| ..2 Leaves 1-pinnate, the pinnae entire |
| ..2 Leaves 1-pinnate-pinnatifid, the pinnae pinnatifid |
| 1 Leaves 2-pinnate to 3-pinnate (the pinnae at least 1-pinnate); sori elongate, 2-3× as long as wide, the larger sori generally curved and extending across the veins (except Diplazium esculentum). |
| ....3 Veins anastamosing |
| ....3 Veins free, simple or forked. |
......4 Rhizomes short-creeping to ascending; leaves variegated, silvery gray and gray-green; [alien, rarely persisting or naturalizing] |
| ......4 Rhizomes erect; leaves not variegated, bright green; [native and widespread, sometimes cultivated] |
1 Rhizomes short-creeping to ascending; leaves variegated, silvery gray and gray-green; [alien, rarely persisting or naturalizing] |
| 1 Rhizomes erect; leaves not variegated, bright green; [native and widespread, sometimes cultivated]. |
| ..2 Leaf blade widest near middle (the fourth or fifth pair of pinnae from the base the largest); margins of indusium toothed or ciliate (not glandular); rachis glandular; spores yellow or brown, finely papillose; petiole scales persistent, up to 1 cm long and 1.5 mm wide |
| ..2 Leaf blade widest near base (the second or third pair of pinnae from the base the largest); margins of indusium ciliate and glandular-ciliate; rachis eglandular; spores brown or dark brown, reticulate-wrinkled; petiole scales early deciduous, up to 5 mm long and 1 mm wide |