Flora of North America species comparison

short-creeping to compact, usually 4–8 mm diam.;

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

short-creeping, usually 4–8 mm diam.;

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

clustered, 10–60 cm;

vernation noncircinate.

clustered, 6–30 cm;

vernation circinate.

dark brown, rounded adaxially.

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

linear, pinnate-pinnatifid throughout, 1–4 cm wide;

rachis rounded adaxially, lacking scales, with dense 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.

elongate-deltate to ovate, not especially beadlike, the largest 1–7 mm, abaxially densely tomentose, adaxially hirsute.

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

articulate at swollen, hirsute nodes, basal pair slightly smaller than adjacent pair, ± equilateral, appearing hirsute 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 32 spores.

containing 64 spores.

absent.

green adaxially for most of length;

abaxial scales absent.

= 2n = 90, apogamous.