Flora of North America species comparison

short-creeping, usually 3–7 mm diam.;

scales usually bicolored, with broad, well-defined, dark, central stripe and narrow, light brown margins, linear-lanceolate, straight to slightly contorted, strongly appressed, persistent.

short-creeping, usually 4–8 mm diam.;

scales uniformly brown, linear-subulate, strongly contorted, loosely appressed, persistent.

clustered, 4–25 cm;

vernation noncircinate.

clustered, 6–30 cm;

vernation circinate.

dark brown, rounded adaxially.

dark brown, flattened or slightly grooved distally on adaxial surface.

lanceolate to ovate-deltate, usually 3-pinnate at base, 1–4 cm wide;

rachis rounded adaxially, with scattered scales and sparse monomorphic pubescence.

narrowly oblong to linear, 3-pinnate-pinnatifid at base, 1–4 cm wide;

rachis flattened or slightly grooved adaxially, lacking scales, with monomorphic pubescence.

oblong to ovate, beadlike, the largest 1–3 mm, abaxially densely covered with branched hairs and small, ciliate scales, adaxially with scattered branched hairs or glabrescent.

oblong to lanceolate, not beadlike, the largest 3–4 mm, abaxially and adaxially glandular-pubescent with short, sticky, capitate glands.

not articulate, dark color of stalk continuing into pinna base, basal pair not conspicuously larger than adjacent pair, usually equilateral, appearing glabrous to sparsely pubescent adaxially.

not articulate, dark color of stalk continuing into pinna base, basal pair slightly smaller than adjacent pair, ± equilateral, appearing glandular pubescent adaxially.

marginal, weakly differentiated, 0.05–0.25 mm wide.

marginal, weakly differentiated, 0.05–0.25 mm wide.

± continuous around segment margins.

usually discontinuous, concentrated on apical and lateral lobes.

containing 64 spores.

containing 64 spores.

green adaxially for most of length;

abaxial scales multiseriate, ovate-lanceolate, deeply cordate at base, with overlapping basal lobes, conspicuous, the longest 0.4–1 mm wide, imbricate, often concealing ultimate segments, long-ciliate, cilia usually confined to proximal 1/2.

green adaxially for most of length;

abaxial scales absent.