Flora of North America species comparison

scales spreading, concolored.

scales spreading, concolored.

4–15 × 0.5–1.2 dm.

2.5–10.7 × 0.3–0.7 dm.

0.2–4 dm, sparsely to moderately scaly;

scales spreading, pale brown to reddish brown, concolored.

0.3–2 dm, moderately to densely scaly;

scales spreading, pale brown throughout.

glabrous, sparsely to moderately scaly abaxially near costae and adaxially.

lacking scales, glabrous (rarely with a few branched hairs abaxially).

reniform to horseshoe-shaped, attached at narrow or broad sinus, 1–1.7 mm wide.

reniform to lunate or deltate-rounded, attached along broad sinus, 1.1–1.7 mm wide.

absent.

present or absent.

2.4–16.3 dm, points of pinna attachment 7.3–21 mm apart;

scales moderately spaced, pale to dark brown, essentially concolored or margin indistinctly paler;

hairs absent.

2.2–9 dm, points of pinna attachment 5–12 mm apart;

scales moderately spaced to dense, pale to dark brown, point of attachment distinctly darker.

pinnae deltate-oblong, slightly to distinctly falcate, 2.3–7.4 × 0.6–1.8 cm, base truncate to truncate-auriculate or auriculate, occasionally overlapping rachis, acroscopic lobe deltate to acute, margins serrulate, apex acute to deltate;

costae adaxially glabrous.

pinnae oblong to lanceolate-oblong, straight to slightly falcate, 0.9–5 × 0.4–0.9 cm, base auriculate-cordate, acroscopically overlapping rachis, acroscopic lobe deltate, margins entire to serrulate to smoothly crenate, apex acute to bluntly rounded;

costae adaxially glabrous.

= 82.