Flora of North America species comparison

scales spreading, concolored.

scales loosely appressed to spreading, essentially concolored.

2.5–10.7 × 0.3–0.7 dm.

8–30 × 0.5–1.3 dm.

0.3–2 dm, moderately to densely scaly;

scales spreading, pale brown throughout.

1.2–5 dm, moderately to densely scaly;

scales spreading, reddish to light brown throughout.

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

moderately scaly, glabrous to occasionally pubescent abaxially, glabrous adaxially, hairs pale to light brown, 0.2–0.7 mm.

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

horseshoe-shaped to circular, attached at narrow sinus or peltate, 0.9–1.1 mm wide.

present or absent.

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.

5–26 dm, points of pinna attachment 9–25 mm apart;

scales scattered, brown throughout.

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.

pinnae narrowly deltate to oblong-deltate, 3.6–9 × 0.7–2 cm, base truncate, sometimes rounded basiscopically, barely auriculate acroscopically, acroscopic lobe obtuse to acute, margins serrulate, apex narrowly acute to attenuate, falcate to slightly so;

costae adaxially sparsely pubescent, hairs pale, erect, 0.1–0.5 mm.

= 82.

= 164.