Flora of North America species comparison

ascending to erect.

erect.

erect to arching back at tip, 2–8 dm;

bulblets absent.

monomorphic, arching, 2–10 dm;

bulblets absent.

1/4–1/3 length of leaf;

scales abruptly diminishing in size distally and falling off early but retaining conspicuous tuft of brown scales at base.

1/5–1/3 length of leaf, densely scaly;

scales light brown, gradually diminishing in size distally.

linear-lanceolate to linear, 1-pinnate, base not or slightly narrowed.

broadly lanceolate, 2-pinnate, base not narrowed.

oblong, slenderly lanceolate, or falcate, usually overlapping, in 1 plane or twisted out of plane of blade, 2–4 cm;

base oblique, auricles well developed;

margins serrulate-spiny with teeth ascending;

apex cuspidate or apiculate with subapical teeth smaller than apical tooth;

microscales lanceolate to linear with straight or sharply angular projections, sparse, on abaxial surface only.

narrowly lanceolate, not overlapping, in 1 plane, 3–13 cm;

base oblique, apex acute with subapical and apical teeth same size;

microscales filiform, lacking projections, sparse abaxially, but longer than in other Polystichum species, forming loosely tangled network over blade and sori (such network only in this species), sparse adaxially.

entire to sharply dentate.

ciliate.

dark brown.

brown.

± stalked, linear-falcate to oblique-rhombic, acroscopic auricle well developed on proximal pinnules;

margins spinulose-dentate;

apex acute.

= 82.