Flora of North America species comparison

short-creeping;

scales dark reddish brown, concolored, margins entire.

short-creeping;

scales golden brown to medium brown, concolored, iridescent, margins entire or occasionally with single broad tooth near base.

arching, clustered, 20–37 cm.

lax-arching or pendent, closely spaced, 15–75 cm.

1–2 mm diam., adaxially hispid, not glaucous.

0.5–1.5 mm diam., glabrous, occasionally glaucous.

lanceolate, pinnate or occasionally pseudopedate, 1-pinnate distally, 12–18 × 6.5–8 cm;

proximal pinnae 1–4-pinnate;

indument of light-colored, sparse, multicellular hairs;

rachis straight, densely hispid, not glaucous.

lanceolate, pinnate, 10–45 × 4–15 cm, glabrous, gradually reduced distally;

proximal pinnae 3(–4)-pinnate;

rachis straight to flexuous, glabrous, not glaucous.

oblong to long-triangular, ca. 2 times as long as broad, progressively reduced toward apex of penultimate divisions;

basiscopic margin oblique;

acroscopic margin of fertile segments crenulate, sterile segments sharply denticulate;

apex obtuse or acute.

various, generally cuneate or fan-shaped to irregularly rhombic (plants in American southwest occasionally with segments nearly round), about as long as broad;

base broadly to narrowly cuneate;

margins shallowly to deeply lobed, incisions 0.5–7 mm, occasionally ± laciniate, sharply denticulate in sterile segments;

apex rounded to acute.

transversely oblong or crescent-shaped, 1–3(–7) mm, glabrous.

± round, 0.6–0.9 mm diam., covered with reddish brown, stiff, needlelike bristles.

mostly 40–60 µm diam.

mostly 40–50 µm diam. 2n = 120.

stalks 0.2–0.3 mm, dark color generally entering into segment base.

stalks 0.5–3.5 mm, dark color extending into segment base.