Flora of North America species comparison

short-creeping;

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

short-creeping;

scales dark reddish brown, concolored, margins entire.

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

arching to erect, clustered, (15–)35–80 cm.

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

1–2 mm diam., minutely rough, abaxially strigose, 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.

ovate, pinnate, 1-pinnate distally (small leaves 1-pinnate throughout), (11–)15–35 × (3.5–)8–15 cm, glabrous;

proximal pinnae (and sometimes also next 2–3 pairs) 1–2(–3)-pinnate;

rachis straight, densely minutely rough.

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.

oblong, about 2 times as long as broad;

basiscopic margin straight or sometimes oblique;

acroscopic margin shallowly lobed, lobes separated by narrow incisions;

apex obtuse, shallowly lobed.

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

crescent-shaped, 1–4.5 mm, glabrous.

mostly 40–50 µm diam. 2n = 120.

mostly 40–50 µm diam. 2n = 60.

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

stalks 0.1–0.8 mm, dark color entering into segment base.