Flora of North America species comparison

somewhat dimorphic, green through winter, 35–120 × 10–30 cm.

monomorphic, dying back in winter, 35–120 × 15–40 cm.

more than 1/4 length of leaf, scaly at base;

scales scattered, brown.

1/3 length of leaf, scaly at base;

scales scattered, dark, glossy brown to nearly black, with pale border.

dark green, lanceolate, pinnate-pinnatifid, herbaceous, not glandular.

green, often white-mottled at tip, ovate, tapering abruptly at apex, pinnate-pinnatifid to 2-pinnate at base, herbaceous, not glandular.

nearly in plane of blade, lance-oblong;

fertile pinnae in distal 1/2 of leaf, distinctly narrower than proximal vegetative pinnae (only in this species);

basal pinnae lanceolate-oblong, much reduced, basal pinnules slightly shorter than adjacent pinnules, basal basiscopic pinnule slightly longer than basal acroscopic pinnule;

pinnule margins distantly serrate.

parallel to plane of blade, ovate-lanceolate, broadest above base;

basal pinnae broadly oblong-lanceolate, slightly reduced, basal pinnule equal to adjacent pinnules, basal basiscopic pinnule and basal acroscopic pinnule equal;

pinnule margins crenulate or serrate.

lacking glands.

and axes lacking glands.

midway between midvein and margin of segments.

nearer midvein than margin.

= 82.

= 82.