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 to nearly erect;

scales dark reddish brown, concolored, margins entire or minutely denticulate.

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

arching or pendent, densely clustered, 20–62 cm.

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

0.8–1 mm diam., glabrous, occasionally 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, 15–38 × 8–26 cm, gradually reduced distally, hirsute;

proximal pinnae 3–4-pinnate;

rachis straight or becoming flexuous, glabrous, not glaucous.

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, nearly round, or fan-shaped, about as long as broad;

base truncate or cuneate;

margins of fertile segments crenulate or entire, sterile segments with margins serrulate;

apex rounded.

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

transversely oblong or crescent-shaped, 0.5–4 mm, covered with whitish needlelike trichomes.

mostly 40–50 µm diam. 2n = 120.

mostly 35–53 µm diam.

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

stalks 1–4 mm, dark color ending ± abruptly at segment base.