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| 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 |